Things seem to bounce/move more as you move back in your trailer or 5th wheel. The front is a nice soft sweet spot - slow rolling bounces controlled by the TV suspension and your trailer's attachment to it. The middle is right over the axles and does okay but is, of course, right over the axles so there is some bouncing. The rear seems to get a magnification of everything.
Valuables like laptops go great on the bed in a front bedroom 5th wheel. I sometimes think I could set a cup of coffee on top of it and not lose a drop while driving. My kitchen is right over the axles and things do jump around a bit but nothing too bad. I couldn't imagine having a rear kitchen. I'd need rubber plates. My 5th wheel has the kids' room in the back and despite them picking up before we leave, everything is on the floor again when we arrive.