docs(ins): rework naming

Author: bene2k1

pages/instances/concepts.mdx

@@ -13,6 +13,10 @@ import Region from '@macros/concepts/region.mdx'
 import Volumes from '@macros/concepts/volumes.mdx'
 import StorageBootOnBlock from '@macros/storage/boot-on-block.mdx'
 
+## ARM Instances
+
+[ARM Instances](https://www.scaleway.com/en/cost-optimized-instances-based-on-arm/) are cost-effective and energy-efficient instances powered by Ampere Altra processors, optimized for AI innovation, real-time applications, and sustainable cloud computing.
+
 
 ## Availability Zone
 
@@ -30,10 +34,6 @@ import StorageBootOnBlock from '@macros/storage/boot-on-block.mdx'
 
 Cloud-init is a multi-distribution package that [provides boot time customization for cloud servers](/instances/how-to/use-boot-modes/#how-to-use-cloud-init). It enables an automatic Instance configuration as it boots into the cloud, turning a generic Ubuntu image into a configured server in a few seconds.
 
-## Cost-Optimized Instances
-
-[Cost-Optimized Instances](https://www.scaleway.com/en/cost-optimized-instances/) are production-grade [Instances](#instance) designed for scalable infrastructures. Cost-Optimized Instances support the boot-on-block feature and allow you to launch high-performance services with high-end CPUs.
-
 ## Development Instance
 
 [Development Instances](https://www.scaleway.com/en/cost-optimized-instances/) are reliable and flexible Instances tuned to host your websites, applications, and development environments.
@@ -48,6 +48,10 @@ You can choose to give your Instance a dynamic IP address when creating or updat
 
 Flexible IP addresses are public IP addresses that you can hold independently of any Instance. When you create a Scaleway Instance, by default, its public IP address is also a flexible IP address. Flexible IP addresses can be attached to and detached from any Instances you wish. You can keep a number of flexible IP addresses in your account at any given time. When you delete a flexible IP address, it is disassociated from your account to be used by other users. Find out more with our dedicated documentation on [how to use flexible IP addresses](/instances/how-to/use-flexips/). See also [Dynamic IPs](#dynamic-ip).
 
+## General Purpose Instances
+
+[General Purpose Instances](https://www.scaleway.com/en/general-purpose-instances/) are production-grade [Instances](#instance) designed for scalable infrastructures. Cost-Optimized Instances support the boot-on-block feature and allow you to launch high-performance services with high-end CPUs.
+
 ## GPU Instance
 
 [GPU Instances](https://www.scaleway.com/en/gpu-instances/) are powerful Instances equipped with dedicated high-end Nvidia graphics processing units. See our [dedicated GPU documentation](/gpu/) for more details.
@@ -64,10 +68,6 @@ An Instance is a virtual computing unit that offers resources for running applic
 
 An InstantApp is an image with a preinstalled application. By choosing an InstantApp when prompted to select an image during the [creation of your Instance](/instances/how-to/create-an-instance/), you choose to install the specified application on your Instance. You can then start using the application immediately.
 
-## Learning Instance
-
-[Learning Instances](https://www.scaleway.com/en/stardust-instances/) are the perfect Instances for small workloads and simple applications. You can create up to one Instance per Availability Zone (available in FR-PAR-1 and NL-AMS-1).
-
 ## Local volumes
 
 <LocalVolumes />
@@ -76,16 +76,6 @@ An InstantApp is an image with a preinstalled application. By choosing an Instan
 
 Placement groups allow you to run multiple Compute Instances, each on a different physical hypervisor. Placement groups have two operating modes. The first one is called `max_availability`. It ensures that all the Compute Instances that belong to the same cluster will not run on the same underlying hardware. The second one is called `low_latency` and does the opposite, bringing Compute Instances closer together to achieve higher network throughput. [Learn how to use placement groups](/instances/how-to/use-placement-groups/).
 
-## Production-Optimized Instances
-
-[Production-Optimized Instances](https://www.scaleway.com/en/production-optimized-instances/) (aka POP2) are compute resources with dedicated resources (RAM and vCPUs). Designed for demanding applications, high-traffic databases, and production workloads.
-
-Three variants of POP2 Instances are available:
-* **POP2**: Production-Optimized Instances with Block Storage.
-* **POP2-HC**: Workload-Optimized Instances, providing a ratio of vCPU:RAM of 1:8.
-* **POP2-HM**: Workload-Optimized Instances, providing a ratio of vCPU:RAM of 1:2.
-* **POP2-HN**: Workload-Optimized Instances, providing a ratio of vCPU:RAM of 1:2 and up to 10 Gbps bandwidth.
-
 ## Power-off mode
 
 The Power-off mode [shuts down an Instance](/instances/how-to/power-off-instance/) by transferring all data on the local volume of the Instance to a volume store. The physical node is released back to the pool of available machines. The reserved flexible IP of the Instance remains available in the account.
@@ -159,3 +149,7 @@ Tags allow you to organize, sort, filter, and monitor your cloud resources using
 ## Volumes
 
 <Volumes />
+
+## x86 (Intel/AMD) Instances
+
+[x86 (Intel/AMD) Instances](https://www.scaleway.com/en/cost-optimized-instances/) are reliable and high-performance instances powered by AMD EPYC processors, tailored for development, testing, production workloads, and general-purpose applications.

pages/instances/how-to/create-an-instance.mdx

@@ -67,7 +67,7 @@ Select a tab below for instructions on how to create an Instance via either our
     2. Click **Create Instance**. The [Instance creation page](https://console.scaleway.com/instance/servers) displays.
     3. Complete the following steps:
         - Choose an **Availability Zone**, which represents the geographical region where your Instance will be deployed.
-        - **Choose a POP2-WIN** Instance type from the **Production-Optimized** range.
+        - **Choose a Windows** Instance type from the **General Purpose** range.
         - **Choose a Windows Server image** to run on your Instance.
         - **Name your Instance**, or leave the randomly-generated name in place. Optionally, you can add [tags](/instances/concepts/#tags) to help you organize your Instance.
         - **Add volumes**, which are storage spaces used by your Instances. A block volume with a default name and 5,000 IOPS is automatically provided for your system volume. You can customize this volume and attach up to 16 local and/or block type volumes as needed.

pages/instances/how-to/migrate-instances.mdx

@@ -9,7 +9,7 @@ dates:
 import Requirements from '@macros/iam/requirements.mdx'
 
 
-The Scaleway platform makes it very easy to migrate your data from one Instance to another or upgrade your Instance to a more powerful one if your requirements grow. In this how-to, we will upgrade an Instance by migrating from a [DEV1-S](/instances/concepts/#development-instance) Instance to a [GP1-XS](/instances/reference-content/cost-optimized/#development-instances-and-general-purpose-instances) Instance. The new GP1-XS Instance will have the same [flexible IP](/instances/concepts/#flexible-ip) as the original DEV1-S Instance.
+The Scaleway platform makes it very easy to migrate your data from one Instance to another or upgrade your Instance to a more powerful one if your requirements grow.
 
 For more information about choosing the best Instance type to migrate to for your use case, see our [dedicated documentation](/instances/reference-content/choosing-instance-type/).
 
@@ -30,9 +30,9 @@ Follow the instructions to [create an image](/instances/how-to/create-a-backup/#
 2. Click the Instance you created an image of.
 3. Click the **Images** tab.
 4. Click <Icon name="more" /> next to the Instance's image.
-5. Select **Create Instance from image** on the drop-down list. You are redirected to the Instance Creation Wizard, where the image has been preselected for you at step 2.
+5. Select **Create Instance from image** on the drop-down list. You are redirected to the Instance creation wizard, where the image has been preselected for you at step 2.
 6. Finish configuring the Instance according to your requirements. Notably:
-    - You are free to choose your Instance type. We chose to create a [GP1-XS](/instances/reference-content/cost-optimized/#development-instances-and-general-purpose-instances) Instance, upgrading from the [DEV1-S](/instances/concepts/#development-instance) on which the image was based.
+    - You are free to choose your Instance type as long it uses the same CPU architeckture (e.g. ARM to ARM or x86 to x86)
     - Click **Advanced options** and use the <Icon name="toggle" /> toggle to deselect **flexible IP**. This creates a the new Instance without a flexible IP, as we are going to attach the one from the existing Instance in the next step.
 7. Click **Create Instance** to finish. The Instance is created and shows in your Instances list.
 
@@ -42,13 +42,13 @@ Next, we will move the original DEV1-S Instance's [flexible IP address](/instanc
 
 1. Click **CPU & GPU Instances** in the **Compute** section of the side menu. The [Instances page](https://console.scaleway.com/instance/servers) displays.
 2. Click the **Flexible IPs** tab.
-3. Click <Icon name="more" /> next to the DEV1-S's flexible IP. In the pop-up menu that then displays, click **Switch Instance**.
-4. Select the GP1-XS Instance from the drop-down list, and click **Attach flexible IP to Instance**.
+3. Click <Icon name="more" /> next to the Instance's flexible IP. In the pop-up menu that then displays, click **Switch Instance**.
+4. Select the new Instance from the drop-down list, and click **Attach flexible IP to Instance**.
 
     The new Instance is now reachable via the old Instance's flexible IP.
 
 ## How to delete the old Instance
 
-Presuming that you no longer need the original DEV1-S Instance, you can [delete it](/instances/how-to/delete-instance/).
+Presuming that you no longer need the original Instance, you can [delete it](/instances/how-to/delete-instance/).