In the gaming world where steam installs apps itself and you need the Windows version for commercial viability anyways, it does make sense to push them to win32.
Outside of gaming though, I don't really see this being the case. You random desktop apps are better off with flatpak and distros like Fedora are already moving everything that direction. Flathub also has the benefit of allowing devs to push to one repo and support multiple distros (again, like Steam).