

Easy thing to say when you’re not the one donating your time for free.
I love what Valve is doing for Linux, but longer term, the onus is on them to solve the 32-bit compatibility layer issue (a-la Proton for win-to-linux, as well as their upcoming x86-to-ARM layer).
Expecting all distros (who again, are staffed mostly by volunteers) to do this work separately (i.e. duplicating all that work), for all time, is a big ask.
They said they’d probably have to if Fedora removed support for 32-bit packages, which was a proposal to the Fedora Community (who rejected the proposal).
Long-term, I imagine Valve will have to bundle a 32-to-64-bit abstraction layer, like they already do with a win-to-linux abstraction layer (Proton), and are preparing to do with an x86-to-ARM abstraction layer.
Distros do not want to each duplicate the work of maintaining 32-bit support for all eternity.