I just realized something. Just think. Maybe A sync didnt make the backrooms (they didnt and you cant change my mind), but they are simply utilizing it as a way to create a storage and residential space. And think about this. The wikidot says that Level 0 has no entities, but Fandom says the opposite. Both could be true. As most of us know, the backrooms is slightly different for everyone depending on their mindset. For example, if you are fixed in escaping, you are less likely to find an exit. All information depends on the documentor.