With this information, we can now say that The Backrooms are trying to keep us from falling through our virtual world. But it's possible that the designer is too busy fixing these new spots that keep popping up as this simulation continues to grow, get better, and thrive. If our simulation has been going on for a long time, they might also be working on other simulations based on how well ours has been going. This is called a "add-on pack" in video games. The developer would probably use the same code for backrooms to save characters from both the add-ons and the simulation we're in. If that's the case, these spaces can move and change depending on where and which version needs them the most. If a patch comes out while a character is still looking for an exit in the backrooms, they could end up connected to a reality that has nothing to do with the simulation they're used to. Zombie modes in Call of Duty usually have nothing to do with the game, right? Who's to say our simulation doesn't have different ways of doing that that we're not supposed to know about?
The person who made the game hasn't thought about a "no-clipped" person getting stuck in a place where feral hounds, zombies, or aliens from add-on packs might be. These beings may be able to "noclip" into the same space this person is in, which I think could lead to some interesting changes to the mythos in the future. This theory would also fit the mythos of "no clip zones" in The Backrooms, and a character from our daily sim could wake up in a new world like Rick Grimes in The Walking Dead, with a message saying "Don't Open, Dead Inside."