[Well, Papyrus doesn't stagger or recoil the way he did when Sans teleported, partly because he's already sitting down. It's the difference between background electromagnet radiation, and trying to watch a few dozen streams at once. Maybe not overwhelming... but definitely whelming.

He lifts a hand slowly into the air, taking in the impressions of seeing it from nearly every angle at once. Trying to move or do anything with it like this, that starts pushing the edge on overwhelming, and he lowers it to better brace himself upright.]

...Okay, I think, I have... decided. [For one, that he won't complain about hearing microwaves and breakup calls as much from now on. But also...] That! You should have. Some nice decor, in here. To have good things to look at. Maybe some plants.