Close. It either natively runs well on Linux, or refund. No Proton, no Wine. Made natively for Linux and runs well, supporting X11 and that Wayland crap. Otherwise "gamers" will once again blame Linux... again. And there is nothing worse than whiny gamers blaming Linux.
Personally, if Wine/Proton is officially supported I am fine to pay. If they don't support native Linux or official Wine/Proton support then I pass. I really don't care what tools/libraries they use as long as the result is supported and the game runs well.