I've been using Catalina as a daily driver since the first beta. I did notice some bugs here and there but I have to say my take away was different. I did get the barrage of permission prompts but it was just like that the one time and while it was a bit overwhelming it made me feel good that my OS was keeping tabs on these things. With Apple's emphasis on privacy they had to build these sort of controls into macOS to play catch up with iOS's features in this regard.

Also, I have hard time feeling sorry for someone who is upset that beta system software upset his working environment. Apple specifically says not to put their betas on critical hardware. The author said he did this because it was "simpler". Not sure if breaking your work environment is "simpler" than booting off an external SSD or having a second machine for testing.