Merge pull request #252156 from JacksonWeber/docs-editor/opentelemetry-enable-1695175552

Add Note Regarding Shim Functionality Limitations

Author: prmerger-automator[bot]

articles/azure-monitor/app/opentelemetry-enable.md

@@ -57,6 +57,9 @@ Follow the steps in this section to instrument your application with OpenTelemet
 
 ### [Node.js](#tab/nodejs)
 
+> [!NOTE]
+> If you rely on any properties in the [not-supported table](https://github.com/microsoft/ApplicationInsights-node.js/blob/beta/README.md#ApplicationInsights-Shim-Unsupported-Properties), use the distro, and we'll provide a migration guide soon. If not, the App Insights shim is your easiest path forward when it's out of beta. 
+
 - Application using an officially [supported version](https://github.com/Azure/azure-sdk-for-js/tree/main/sdk/monitor/monitor-opentelemetry-exporter#currently-supported-environments) of Node.js runtime:
   - [OpenTelemetry supported runtimes](https://github.com/open-telemetry/opentelemetry-js#supported-runtimes)
   - [Azure Monitor OpenTelemetry Exporter supported runtimes](https://github.com/Azure/azure-sdk-for-js/tree/main/sdk/monitor/monitor-opentelemetry-exporter#currently-supported-environments)