InDesign CC2020 15.0.1 is not running on iMac 27-inch, 2017, MacOS Catalina Version 10.15.3
When I try to start InDesign, nothing happens.
In the "Activity Display" of Mac OS, InDesign appears marked in red and cannot be restarted or stopped there, I have to force to quit and to wait some time until InDesign is finished.

Maybe it has a connection to the following: Photoshop works, but it needs to be terminated with force to quit via the "Activity Display" of Mac OS.