I can speak for someone who has done it. I have not been able to achieve Windows level performance. Plus the time it takes to do things like force the GPU to turn on/be used by the application/OS is nontrivial and I'm a full time programmer.

Not to mention when I'm using GPU based applications, my second monitor sometimes freezes. Mostly Steam, but rarely videos.

(Not to say Windows didn't have its own problems like forced update/reboot, ads/ragebait news in the start menu, full remote control of your file system.... gross)