For an audio app that I work on, it's similar, but different: around 1% of the users are on Linux, and around a third of the bugs / complaints come from Linux, but they're virtually all Linux specific. We're having to seriously consider dropping Linux support because the support / maintenance load is so high. (This comes significantly from the libraries we're using having worse Linux support, and a lot from the Linux…
With Pipewire and containerized distribution (eg. AppImage or god forbid, Flatpak), distributing Linux software can really be as complicated as you want it to be. Granted, audio software is still a bit confusing compared to Windows or MacOS, but with the advent of PipeWire I think most people are ready to put those days behind them. Another alternative is to drop Linux support and let your users make a Wine installer…
This is the first time I'm reading of Pipewire, and it sounds promising, but will need to have host support before it becomes a reasonable VST / LADSPA replacement. (I didn't see if that's among its goals, but such would seem reasonable.)