It's weird but you're not alone, I had a similar thing but with my 2D collection. To the point that even after finally resolving to delete it all a few years ago I can still visualise the order of the files, the subfolders, all of it. Sometimes I wonder if that was the right decision since now I keep on coming back to online porn and feeling paranoid about my browsing history, but then again I was literally adding to that collection pretty much daily for over a decade anyway and it was getting out of hand. You've put me in the mood to have a nostalgia fap to the Meet'n'Fuck games for the next couple of hours, thanks anon.