I usually use Linux and Windows (pretty much split 50/50) and tbh this is why I never could switch to Mac full time even though I've have had and still have several Macs at home. The full screen beahavior is weird. Is the dock should overlay every single window all the time? If not then why is the dock not hidden by default? If yes then full screen is actually "maximum size app window without overlaying the dock"? What's even the point of the dock actually? The other one is the open window =/= running app behavior. Wait 2 hours later this app is still running in the background even though I've closed all windows?
Apps and windows things is actually great though if you learn yo use it and don't disable minimizing windows to the dock
Seems like it just depends what you're used to, change is frustrating and sometimes totally unnecessary.
What about the minimize and maximize buttons being swapped without any way to customize it. That one drives me crazy.