I have decided to stick with the macOS Finder even for now despite its bugginess. Hopefully, these small Finder problems will be worked out over..
I continue to install the latest macOS Catalina Betas. Today I installed Developer Beta 4 of 10.15.5. It seems to work just fine, very fast..
I was still having so many problems with the macOS Finder in Catalina 10.15.4 I did a desperation move. I installed the Catalina 10.15.5 Beta..