Comment by spockz

You can use Rectangle to get all that what you want in terms of tiling.

Moving between windows of the same app is cmd+~. Cmd-tab moves to another app, remaining on the same desktop if that has a window there.

The delay in focus can be reduced by turning off animations in “accessibility”.

Regardless, I’m with you on that everything is way more snappy on my Linux machine. Even if it’s running a “full” WM/DM like KDE.