Some people being lucky and not having issues doesn't mean other people don't have them. As evidenced in many comment threads recently, plenty of people have issues with Catalina.
Yeah, Catalina actually fixed some bugginess I had with Mojave. Only major loss is that some third-party prefpanes I use broke due to signing requirements
God knows my laptop is spending alot of time on its charger at the moment.
Given 10.15.5 is likely to be the last version of Catalina before whatever comes next... maybe it will be time to jump in?