What I hate most about mac is the opinionated design. I liked it in the days of Tiger and Leopard but what I didn't like since was some designer deciding that I have to use my computer in a different way every year and forcing changes on me. Opinionated design only works when you as a user have no opinions or if you are a follower.

Personally I do have strong opinions how my computer should work and I'm not a follower. I could never work in an army and take orders either.

The problem was that early OS X used to be pretty aligned with my own opinions so I didn't notice the issues with this model. But after the Mac becoming more frustrating every year I finally dumped it and now I'm really happy with KDE which I can configure how I want.