I updated to Catalina the other day and everything seems to be ok other then a few minor things. I just can not get the Auto Feature to switch to Dark Mode to Light to work! Night Shift works just fine but not the Auto switch into either Light or Dark mode. If I do it manually it works ok but not Auto. And my other problem is sometimes the Dock will not reveal its self when you click on it and the only way to use it is to use the F4 key to bring it up. But if you signout and sign in again it will work fine or use killall Dock command in the terminal it will work correctly. I have disabled the Autohide for now to see if it happens again. I have a 2017 iMac 21.5.