The force feedback of the steering wheel combined with the force being put into shifting gears will make his table tremble constantly
at the least. Also: he's using an office chair on wheels - this means he'll constantly be pushing himself away from the desk when applying force on the pedals with his feet/legs (unless the chair has brakes, but I don't know). AND, since it's an office chair, the seat will constantly rotate as well, which is annoying as fuck when using a steering wheel/pedals. And guess what: the trucks usually have 10-18 gears, just like in real life, so he will have to be operating both the clutch and the shifter
constantly, which he probably didn't take into consideration.