It occurred to me while reading the hang out game thread that a fair number of different titles have chairs which you can sit in which serve no mechanical function. This happens across a diverse collection of genres, too. I can think of at least two different Metroidvanias with chairs you can sit in (Symphony of the Night most famously, and Bloodstained: Ritual of the Night likely as a callback). Some JRPGs let you sit in chairs. Some open world action adventure games let you sit in chairs.
What games have you played that let you sit in chairs, even though it probably didn’t do anything?
(P.S. Bloodstained even expects you to sit in the chairs to the point where an intentional chair sitting fake out is placed by the waterfall )