I don't feel over-stimulated, so I can only guess that such people would indeed prefer games like Farmville and Neko Atsume.
But the author's friend, in addition to being overwhelmed with constant shock and stimulation, is also a bit of a snob, so she won't play those low-brow games. I don't know what high-brow relaxing games are like. Maybe Papers, Please and Dear Esther?
Out of interest, what would such a game look like, to compete with such a state? Farmville? Candy Crush?