MacOS is still stuck in the 90s skeuomorphic design bs, and prevents users from changing any aspect of the UI to achieve a minimum of comfort and productivity.

The UI is buggy, pop-up windows steal focus all the time, window management is pretty much nonexistent, there are slow animations with laggy focus changes.

It may be fine for a soft user who just uses a browser, but trying to do any serious work on a mac is a nightmare compared to a modern tiling WM on linux.