adjust known issues for 8.16.0

docs/CHANGELOG.asciidoc

@@ -100,7 +100,9 @@ The 8.16.0 release includes the following known issues.
 The Stack Monitoring pages Overview, Nodes, Logs can stop working with the error "Unable to load page error". The Stack trace mentions `TypeError: Cannot read properties of undefined (reading 'logsLocator')`.
 
 *Workaround* +
-None at the moment.
+Disabling the `Set feature visibility > Logs` feature at Kibana Space settings level will prevent the error to occur. Please note the `Logs` feature will not be available on such space.
+
+It's also possible to `Observability > Logs` feature privilege to `None` on the role level - this will hide the `Logs` feature for individual users and prevent the error for these users as well.
 
 For more information, refer to {kibana-issue}199902[#199902].
 ====
@@ -114,7 +116,13 @@ For more information, refer to {kibana-issue}199902[#199902].
 Tutorials linked from the {kib} home page show an error "Unable to load page error". The Stack trace mentions `The above error occurred in tutorial_TutorialUi`.
 
 *Workaround* +
-None at the moment.
+The APM / OpenTelemetry tutorials represented a shortcut to get important parameters to use in the configuration files quickly.
+It is still possible to obtain the same parameters following the documentation tutorials of APM.
+
+More information can be found in the {observability-guide}/apm-collect-application-data.html[APM documentation] and the {observability-guide}/get-started-with-fleet-apm-server.html[Fleet documentation].
+
+For information about how to create APM API keys, please check the {observability-guide}/apm-api-key.html#apm-create-an-api-key[API key documentation].
+
 
 For more information, refer to {kibana-issue}199891[#199891] and {kibana-issue}199892[#199892].
 ====