Desktop linux fixes (#23569)

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## Description

Closes #23551
Closes #23552

## Related issues or tickets

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## Reviews

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- [ ] Technical review
- [ ] Editorial review
- [ ] Product review

Author: aevesdocker

content/manuals/desktop/setup/install/linux/_index.md

@@ -137,7 +137,7 @@ To install Docker Desktop successfully, your Linux host must meet the following
 - KVM virtualization support. Follow the [KVM virtualization support instructions](#kvm-virtualization-support) to check if the KVM kernel modules are enabled and how to provide access to the KVM device.
 - QEMU must be version 5.2 or later. We recommend upgrading to the latest version.
 - systemd init system.
-- GNOME, KDE, or MATE desktop environment.
+- GNOME, KDE, or MATE desktop environments are supported but others may work.
   - For many Linux distributions, the GNOME environment does not support tray icons. To add support for tray icons, you need to install a GNOME extension. For example, [AppIndicator](https://extensions.gnome.org/extension/615/appindicator-support/).
 - At least 4 GB of RAM.
 - Enable configuring ID mapping in user namespaces, see [File sharing](/manuals/desktop/troubleshoot-and-support/faqs/linuxfaqs.md#how-do-i-enable-file-sharing). Note that for Docker Desktop version 4.35 and later, this is not required anymore.

content/manuals/desktop/setup/install/linux/archlinux.md

@@ -21,8 +21,6 @@ aliases:
 
 This page contains information on how to install, launch and upgrade Docker Desktop on an Arch-based distribution. 
 
-
-
 ## Prerequisites
 
 To install Docker Desktop successfully, you must meet the [general system requirements](_index.md#general-system-requirements).
@@ -33,7 +31,7 @@ To install Docker Desktop successfully, you must meet the [general system requir
 
    ```console
    $ wget https://download.docker.com/linux/static/stable/x86_64/docker-{{% param "docker_ce_version" %}}.tgz -qO- | tar xvfz - docker/docker --strip-components=1
-   $ cp -rp ./docker /usr/local/bin/ && rm -r ./docker
+   $ sudo cp -rp ./docker /usr/local/bin/ && rm -r ./docker
    ```
 
 2. Download the latest Arch package from the [Release notes](/manuals/desktop/release-notes.md).