Tbh, I still stare at the wall for 30m after a busy day WFH sometimes. A bit of indecision on if I have energy to start this or that, but more just letting my brain cool.
I'm fairly introverted, but more social than many. Watercooler talk doesn't really bother me unless it's awkward and unescapable. So I have that going for me.
Edit - or sports or cars. I've worked on teams that only talked about those topics and it was like nails on a chalk board to me