“In other words, for every Windows title out there, there’s a coin flip chance that it will work just as expected on Linux.”
Valve did more for Linux gaming by translating Windows calls than two decades of begging studios for native ports. The success rate has sat near 50 percent for a long time. The blockers are anti-cheat and DRM, which publishers chose. Valve can’t patch its way past a publisher who doesn’t want you there.