For example, there is a kitchen but Mr. Peterson can't do any kitchen activities that were seen in the alphas in it because the room is upside down. The living room (where you get the key for the bedroom) lacks any sort of features like a TV and sofa like you would expect from a living room. Mr. Peterson used to have a bunch of tasks for the garage as well, like using a wrench to work on his car, and welding, but they're nowhere to be found.
Maybe the kitchen could be at a normal rotation with a fridge and a stove, so Mr. Peterson could get food from the fridge, or make coffee on the stove as seen in Alpha 1.5. The stove would also work as a distraction with the kettle for Quentin. The fridge is already in the game and the stove is a functioning item in the files, so it wouldn't take much effort.
For the living room you could just add a couch and a table where the TV sits on, it could be used to play The Sounds Of Nature and Mr. Peterson would go there to watch TV.
For the garage add the power box thingy and welding tools back so Peterson can weld to his heart's content, and allow him to pick up his wrench and open the car's engine so he can work on it.