Summary
Kibana are adding a global help menu item to the global header, and in this each app is able to add custom content and link to i.e. the Discuss forum for feedback (see example in issue referenced).
The PR #29664 has a summary of how to get it added in each app.
APM example

Tasks
Summary
Kibana are adding a global help menu item to the global header, and in this each app is able to add custom content and link to i.e. the Discuss forum for feedback (see example in issue referenced).
The PR #29664 has a summary of how to get it added in each app.
APM example

Tasks
Provide feedback for APM