Well, the luck of the draw experience with Linux is precisely one of its problems.

Works perfectly? Exaggeration isn't going to change anything. "Those anecdotes are bullshit but mine aren't, they were doing it wrong" is a common trope in these discussions.

At least with laptops, there are models that you can research and see if other people have been successful using a Linux distro on them.

Building your own Linux gaming rig is then that much harder in comparison for most people.