For me it was the keyboard shortcuts and mouse behavior differences. That plus the homebrew weirdness trying to emulate Linux package management. I decided to just use Linux.
Ultimately, Linux is a development environment for Linux, and by extension the most developer friendly OS imo.
I’ve gotten used to the mouse behavior and keyboard shortcuts.
One thing that drives me nuts about Linux is that application support generally isn’t as good as Mac. For example, there is no Claude Desktop app for Linux nor an Apple Music desktop app. If you need those, you’re using somebody’s hacked together project that half works, a web version with limited features, or paying for a third party app.
Ultimately, Linux is a development environment for Linux, and by extension the most developer friendly OS imo.