But there isn't anything I can't do on it that I could do on linux.
sure there is - You can't sanctimoniously complain about manufacturers not supporting your Freedom!
Apple is a leading OSS contributor, and on top of that makes the best hardware in the business, especially when it comes to laptops. Putting a Macbook of any line next to a Dell, HP, or Asus, comparing the fit/finish/polish, makes any other brand feel like toys.
I use Mint KDE on a Thinkpad at work, and while it's a perfectly adequate solution, it never feels as solid as a Macbook, and no other OS compares to macOS.
Possessions increase to fill the space available for their storage. -- Ryan