This design seems to cement the trend at Apple to position their products as consumer appliances, not platforms useful for development.
The problem is, there's nothing else out there. Everything is going to shit in one way or another. Windows is now a disaster, Linux was always a disaster in terms of user experience and isn't improving.
Mac OS was the last bastion of somewhat good, thoughtful design, user experience and attention to detail and now they've gone to shit too.
Curious: what have you tried? People who use "Linux" as a catch-all in terms of UX usually have only tried a single distribution with a single desktop environment.
It's really hard for me to use non i3wm supporting OSes now, even though I have to use Windows from work, and have used Macs for the better part of the last 2 decades personally and in college.