I mostly full-screen each app, deterministic switching means I only real need alt layouts if something forces a cross window dnd. But I just use capslock+cmd and jkl; plus a few other keys to handle any adhoc positioning I need. j is left quarter, jk left half, jkl left 3/4, kl middle half, l fullscreen, etc, hitting them again cycles to top half bottom half.

So with left hand caps+cmd and right hand home row I can basically do any of 1/4 2/4 3/4 4/4 increment combos with one chord and hit them again for top half bottom half.

I don't really do single quarters ever except on far left or right so that's why l is mapped fullscreen.

it works very well, was a long time user of btt before I got tired of it randomly failing.

a karabiner script handles the key chords and dumps them to yabai