So I installed Explorer patcher to get the old taskbar back https://github.com/valinet/ExplorerPatcher
Other than that the only feature of 11 that I have used is the snap zones. And I guess if I want that I can install the power toy it is based on.
I had to create a new app to scratch that itch: https://lowtechguys.com/rcmd
I think the consistent shortcuts for switching between tabs are Cmd-Shift-[ and Cmd-Shift-]
It worked in all applications I used so far.