I love KDE too. I think macOS was never meant to be like that though. macOS is about opinionated design, where there's one way to do things and you have to go with the designers workflow philosophy or get frustrated. Gnome is a clear example too. The developers are always fighting users that want new configuration options.

KDE is all about configurability. Changing things to the way you want them to be. It's got lots and lots of options.

I was on macOS was daily driver for a long time. When I moved to it I was pretty aligned with Apple's workflow ideas and Linux desktops were messy crap (KDE 3 and 4 for example). But Apple changed their design over time and started rubbing me the wrong way more and more. Eventually I rediscovered KDE (5) and it was amazing to have my computer work the way I want it again.