Yeah that's been my experience with native Linux builds too. Most of them were created before Proton etc got good, and haven't necessarily been maintained, whereas running the Windows version through Proton generally just works.
Unfortunately it seems supporting Linux natively is pretty quickly moving target, especially when GPUs etc are changing all the time. A lot of compatibility-munging work goes on behind the scenes on the Windows side from MS and driver developers (plus MS prioritizing backwards compat for software pretty heavily), and the same sort of thing now has a single target for peoples efforts in Proton.
It's less elegant perhaps than actual native Linux builds, but probably much more likely to work consistently.
Unfortunately it seems supporting Linux natively is pretty quickly moving target, especially when GPUs etc are changing all the time. A lot of compatibility-munging work goes on behind the scenes on the Windows side from MS and driver developers (plus MS prioritizing backwards compat for software pretty heavily), and the same sort of thing now has a single target for peoples efforts in Proton.
It's less elegant perhaps than actual native Linux builds, but probably much more likely to work consistently.