Honestly I'd argue the opposite: that because Linux Desktop is such a fragmented mess of a non-platform, "native" ports are likely to work at least as badly if not worse than those running on a compatibility layer. There's even some anecdotal evidence that this is the case with games that do have native ports and running the Windows version in proton being a better experience.
The compatibility layer for the linux native games is the steam-runtime though.
So fragmentation of the distributions matters to a much lesser degree already.
