I loved BetterSnapTool, but I'm glad my workflow has simplified to the point where allowing my windows to be subjected to the tyranny of a dynamic tiling window manager actually made sense, and now I feel more at home than ever!
I used Magnet before Big Sur, but have actually since switched to using Stage Manager. With multiple screens, I find that I seldom need more than two active apps simultaneously, and it actually helps me manage my focus better.
It really depends on the size and resolution of your screens and use case. If you're using wide, high resolution screens, I really want to be able to place multiple windows in different arrangements on one screen for app development.
I find myself constantly shuffling windows around on my setup.
