Many people have problems with macOS Catalina. For me Time Machine has been the biggest headache. Catalina does have one silver lining, it finally fixes the long standing Location issue for iMessages.
What’s interesting is that the macOS iMessage app still doesn’t have a dedicated Location setting like FaceTime app or iOS. Instead, iMessages Location seems to adapt in some other way I have not been able to figure out. It doesn’t matter, as long as it works.