Depends on what you're using it for. Windows 11 is the only main stream competition, but for work I've used Pop OS for a few years and was amazed by how stable and usable it is for work.

Back to Mac OS now due to a change of workplace, and while I'm absolutely blown away by the M3 performance and battery life the OS is something I'm still struggling with a bit.

https://alt-tab-macos.netlify.app/

Rectangle

karabiner

Hammerspoon

others but I'm not at my laptop rn