Track Content Changes, Track User Activity, Audit Log, User Activity Log, Audit Trail
Track user activity on WordPress site with Stream plugin.
There are also extensions to it, as Stream to Slack
How to track and record Logged In User Activity in WordPress?
Simple History also hass great extensions like Developer Loggers for Simple History and Simple History Cards
It also has a beautiful way of dealing with user permissions; filter simple_history_view_history_capability. Modify this filter to change what capability is required to view the history. Example how to it is here: line 59 @ examples.php
The new entrant in 2022: History Log by click5
How to Track and Record Logged In User Activity in WordPress How To: Track WordPress Changes & User Activity - Free Plugins to Download