Don't Install If Are Worried About macOS Catalina Problems
There are already some macOS Catalina problems, and there will likely be more as additional users install the software and try to use it in ways and configurations Apple didn't plan or test for.
Even with a beta and staggered release from iOS and iPad OS, expect a bumpy start. If you don't want to deal with problems and errors related to being an early adopter, skip macOS Catalina for now.
We could see performance, battery life, and connectivity issues appear as more users install the update. We'll be updating our coverage of macOS Catalina problems and listing fixes as we go hands-on.