Of all the things you can dislike you pointed out a few features which actually make some sense. Cmd+` works well, even better than alt-tab most of the time, though it’s a major pain in the ass if you want multiple windows laid out from multiple apps on a single screen, and god forbid you have more windows of any in the background. The click to focus stops accidental clicks and gives a way out when the only visible piece of an app is a button.

I’d rather focus on Apple refusal to support standard dpi displays (hat tip betterdisplay), basically broken .0 releases, gimped docker implementation, useless window management and broken multi screen windows.