I’m still not entirely sure how this happened (and managed to do a driver update through Windows Update after the fact), but after re-installing a clean version of Windows 11 over… whatever happened to this computer, the gaming desktop is back to being fully functional! As long as I don’t have to do this too tremendously often I’ll take my wins for what they are. I do have a copy of the Windows 11 installation ISO fresh from the official website, and I have a USB drive that I can use to boot the computers in this house up if they give me any more problems like this one was. I’m crossing my fingers that I won’t need these though.