There seem to be bug in the upgrade of evolve version 20.3.
I have updated my environment from 20.2.9 to 20.3; it doesn’t show Evolve version at other App level except the Admin.
Relevant environment factors such as tool & version (eg. 10.X, 10.7 and higher, Studio 11, etc.)
There is a setting on the Admin app that enables or disables the links and product version options on the user app. Please check this.