Alright, so I made some theories and a backrooms map! will not add levels, because there are 3000. (Just saying, the backrooms map is about how tornadoes exist or natural disasters.)
Theory 2 might be the most likely to be right, If you don't overthink it, of course. read the TL:DR if you dont want to become a nerd like me on theory 1. Would like to hear your objections and theories about the backrooms too! and of course, opinions.