Funnily enough, for the ~5 years I used macOS, the Window Manager was the most frustrating aspect for me. I could not maximize apps (there was only a weird fullscreen/focus mode), I would accidentally end up dragging a window very often etc. All this gave ended up creating this feeling in my brain that the windows are just "floating" on the screen instead of being tightly bound to an arrangement.
You're not really 'supposed' to maximize or even tile apps on the Mac. In most cases it's a waste of screen space. The Mac has always been focused around the desktop metaphor. Historically applications were composed of multiple windows, and focusing a window in an application brought all of the other windows for that application to the front. You would manually arrange each of the windows/palettes of your application for multitasking, much like you would with physical pieces of paper.
