I'm roughly on the same boat. A format I've come to enjoy is streaming a pausable strategy game with a group of friends and taking decisions collectively (so if the game is Frostpunk, we're basically the oligarchy that's deciding how much is the working class going to slave away and how many deaths are acceptable), but it's hard to find stable friend groups that like it.
I always enjoy co-op when I actually do it, but nowadays I just can't commit to the long gaming sessions like i used to.
Worse, I feel kind of beholden to help the other players have a good time. Which can be fun, but but when my introvert battery is low, that is the last thing I want out of my game.
It's not a great feeling when you want to leave, but you're sticking around because you don't want to quit mid chapter or whatever.
Probably not healthy to want to get out of innocuous little social situations all the time hahaha oh well