Cmd-` is pretty inelegant. It disturbs your workspace, bringing all the windows you cycle through to the foreground and leaving them there. You have to play spot-the-difference looking for which window just popped up, then evaluate whether it's the one you want.

Other desktop environments put the window switcher in the center of the screen (so your eyes can unthinkingly jump straight to it), you can quickly tell "hit <tab> four times to get the window I want", and your workspace wasn't disturbed with other windows you aren't interested in.

I've been using MacOS for over 10 years by now and I still consider it vastly inferior in this regard. I recently started using alt-tab which does a pretty good job at mimicking Windows but it's slightly buggy and introduces a tiny but noticeable delay which is a constant source of frustration to me.

Imagine you have three tasks, where each one uses one window from your browser, terminal, finder, and editor. You rarely want to switch between app windows, but you often want to switch between "task windows". The windows/Linux alt-tab style is faster here.

Cmd~ switched cross apps without any ui or delay when yoke using stage manager

It switches between all windows within one stage