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I always thought Pop!_OS had a mecha for it's avatar...
not that I actually made the move to Pop!_OS so here's a half-assed attempt anways
Also, have to put in further 2 cents for either running dual-boot or having a VM Windows with GPU hardware acceleration setup if you are going "full" Linux.
The prototypical Linux distro is not being designed with gaming in mind. Philosophically, Linux is about productivity, customization, and complete file management, so partitioning miscellany like games and time-wasting stuff on a dual boot or encapsulated inside a second virtual environment is aesthetically sensible, if not just a better experience actually playing-games-wise.