I switch at around the same time and I had the exact same experience. You can use your Mac pretty much the same way you did 15 years ago. Some of the newer stuff is a little annoying, there’s basically “to much” operating system and it sometimes get in the way.

The article isn’t wrong though, so things do seem a bit weird if you don’t know they work. MacOS is far from perfect, it is however much more consistent than Windows.