That's an interesting path to using a Linux desktop, but it makes sense. I'm not sure if you're asking rhetorically, but I'd say that if you wanted a Linux gaming desktop, you'd just start with a normal gaming desktop (prebuilt or custom - you'll find endless guides on either). The thing about Linux/Open Source is that there are nearly endless distributions and politics around those, which is confusing, but I'm a fan of Pop!_OS for its simplicity - I suspect I could install it on my parents machines and they'd be OK, but it's also fine for my uses. The other option I'd consider is SteamOS so you could presumably just run the OS installed on the Deck on your dekstop for commonality, but I have zero experience with it as an OS, so it may be more complicated than that.
I'm using Pop!_OS with an AMD CPU/GPU system that's pretty far from what I'd call stout, but I'm able to play games like "No Man's Sky" or "Crysis" just fine. I've probably tested around a dozen games personally going back as far as "Total Annihilation" from 1997(?) which ran without issue.
I'm using Pop!_OS with an AMD CPU/GPU system that's pretty far from what I'd call stout, but I'm able to play games like "No Man's Sky" or "Crysis" just fine. I've probably tested around a dozen games personally going back as far as "Total Annihilation" from 1997(?) which ran without issue.