I ran into the same issue. I moved away for 8 years and despite my best efforts, by the time I moved back, the Pittsburgh friends weren't friends anymore. And it's almost impossible to get into friend groups around here because most are from when they were kids. I've been back two years and haven't made any new friends unfortunately. My boyfriend and I even happened to have moved next door to someone who I actually in the same friend group with in high school. I thought that was an in to make some friends but it unfortunately has not been because they aren't interested.

It was actually easier to make friends when I had moved away from Pittsburgh but I'm not sure if it was because I was younger or what.

My partner and I don't really drink either (maybe a beer or glass of wine every month or two). So it's extra challenging to find soical events and meet people.

Edit I should add it's doubly hard because I'm physically disabled which makes some clubs/activities not really doable and people tend to be uncomfortable with disability.