Archlinux if you don't count the time when I was five. I install Ubuntu then a series of packages to make it "look and feel" like Mac os. After that I was disappointed with how janky it was as a Mac clone and switching back to windows.
I was crazy about macs when I was a kid. When I finally got one, I enjoyed the polish but ultimately found it limiting. After 15 years; about six years on macos, seven on Windows. I played with archlinux in an emulator for a few months before I nuked my system and never went back, thanks wine/DXVK!