Anything in the common space is subject to being moved. All your personal things (shoes) do need to be in your room.
My daughter lived in a 4 person suite. She was the obsessively neat one and it did drive her crazy that the others left stuff all over the apartment - dishes and trash and school stuff and lacrosse equipment and phone chargers and a vacuum cleaner and bags from the store… She spent a lot of time in her room because they were slobs. The fridge was always full of left overs and it did smell.
It’s not just your coffee cup, it’s 4 coffee cups if everyone leaves them on the counter. Your two pairs of shoes and the 3 x 2 pairs of shoes and that’s 8 pairs of shoes in the common area.
D was originally supposed to live in the suite but then had agreed to live with another teammate but the school screwed up housing assignments so she was put back in the original suite. D hadn’t been in on the ‘you bring the rug and you bring the racks for the bathroom and you bring the TV’ so none of the stuff was hers and she didn’t want any of it there anyway! She wanted less stuff in the common area but wasn’t asked. She did have the right to ask them all to keep their stuff picked up and in their own rooms.
Oscar and Felix. You need to get along. Keeping your shoes in your room is a small thing.