Update differences docs for ech vs serverless (#2708)

Fixes #1723

Author: theletterf

deploy-manage/deploy/elastic-cloud/differences-from-other-elasticsearch-offerings.md

@@ -15,7 +15,7 @@ products:
 This guide compares {{ech}} deployments with {{serverless-full}} projects, highlighting key features and capabilities across different project types. Use this information to understand what's available in each deployment option or to plan migrations between platforms.
 
 :::{note}
-The information below reflects our strategic goals, plans and objectives and includes estimated release dates, anticipated features and functions, and proposed descriptions for commercial features. All details are for information only and are subject to change in our discretion. Information may be updated, added, or removed from this document as features or products become available, canceled, or postponed.
+The following information reflects our strategic goals, plans and objectives and includes estimated release dates, anticipated features and functions, and proposed descriptions for commercial features. All details are for information only and are subject to change in our discretion. Information might be updated, added, or removed from this document as features or products become available, canceled, or postponed.
 :::
 
 ## Architectural differences
@@ -37,6 +37,7 @@ The information below reflects our strategic goals, plans and objectives and inc
 | **Cross-origin resource sharing (CORS)** | Supported | Not available. Browser-based applications must route requests through a backend proxy server. |
 
 In Serverless, Elastic automatically manages:
+
 * Cluster scaling and optimization
 * Node management and allocation
 * Shard distribution and replication
@@ -107,13 +108,14 @@ This table compares Observability capabilities between {{ech}} deployments and O
 | **Feature** | {{ech}} | Serverless Observability Complete projects | Serverless notes |
 |---------|----------------------|-----------------------------------|------------------|
 | [**AI Assistant**](/solutions/observability/observability-ai-assistant.md) | ✅ | ✅ | |
-| **APM integration** | ✅ | ✅ | Use **Managed Intake Service** (supports Elastic APM and OTLP protocols) |
+| **APM integration** | ✅ | ✅ | Use **Managed Intake Service** (supports Elastic APM and OTLP protocols) <br> Refer to [Managed OTLP endpoint](opentelemetry://reference/motlp.md) for OTLP data ingestion |
 | [**APM Agent Central Configuration**](/solutions/observability/apm/apm-agent-central-configuration.md) | ✅ | ❌ | Not available in Serverless |
 | [**APM Tail-based sampling**](/solutions/observability/apm/transaction-sampling.md#apm-tail-based-sampling) | ✅ | ❌ | - Not available in Serverless <br>- Consider **OpenTelemetry** tail sampling processor as an alternative |
 | [**Android agent/SDK instrumentation**](opentelemetry://reference/edot-sdks/android/index.md) | ✅ | ✅ | |
 | [**AWS Firehose integration**](/solutions/observability/cloud/monitor-amazon-web-services-aws-with-amazon-data-firehose.md) | ✅ | ✅ | |
 | [**Custom roles for Kibana Spaces**](/deploy-manage/manage-spaces.md#spaces-control-user-access) | ✅ | ✅ | |
 | [**Data stream lifecycle**](/manage-data/lifecycle/data-stream.md) | ✅ | ✅ | Primary lifecycle management method in Serverless |
+| [**EDOT Cloud Forwarder**](opentelemetry://reference/edot-cloud-forwarder/index.md) | ❌ | ✅ | |
 | **[Elastic Serverless Forwarder](elastic-serverless-forwarder://reference/index.md)** | ✅ | ❌ | |
 | **[Elastic Synthetics Private Locations](/solutions/observability/synthetics/monitor-resources-on-private-networks.md#synthetics-private-location-add)** | ✅ | ✅ | |
 | **[Fleet Agent policies](/reference/fleet/agent-policy.md)** | ✅ | ✅ | |