below question: Can we capture the user activity in Administration console or designer page even if the user is not changing anything there , user start pages ,etc. and they are not making any changes , Is this activity also captured in the logs and if it is which log should I find it?
Discussion posts and replies are publicly visible
You can use the admin_console_*.csv to see any changes.
But just to see which pages/sections were accessed, I think your best best is the tomcat-access.log.
All requests that are processed by the application server are logged to tomcat-access.log in <APPIAN_HOME>/logs. Tomcat access logs give you information about who has access to your application, what resources were accessed, the IP, queries, date, etc.
tomcat-access.log
<APPIAN_HOME>/logs