Comment by paustint

I use https://rectangleapp.com which has been a lifesaver. I only use the following three shortcuts and disable the rest:

cmd+option+f = maximize to fill entire screen

cmd+option+ctrl+left/right = move window to other monitor on left/right

I occasionally use cmd+option+left/right if I need to have two windows side-by-side on the same monitor.

MacOS window sizes have always felt weird to me - no easy way to maximize without making it go into full screen mode.

As I was writing this, I just realized that hovering on the green traffic light shows a menu to choose some window placement options.... not sure how I never realized this before, but even the "maximize" option there doesn't go all the way to the edges - weird.