I don't even use Reddit for that anymore. If I've got a problem there's plenty of forums I can consult for help, or I can post the question here on Lemmy, on the fediverse, on Bluesky, you get the idea.
I managed to get a Windows XP virtual machine working with GPU passthrough thanks to a forum MattKC (tech youtuber who does repairs and reverse engineering) had set up and posted on. Even when I used Reddit, there wasn't much info on getting BIOS-only versions of Windows working.