One thing I've noticed is that going into the office that one day is incredible enjoyable. I think I've been a bit too isolated since I don't have that many friends either and work on side projects as well.
But, working 1-2 days in the office per week feels like the optimal experience. You get the social part with meetings and you get the work alone part where you may concentrate on tasks.
I really enjoy working remotely though, it has reduced my stress levels, increased my spare time and made it available to live in a cheaper place far away from the city centre.
Things like this I enjoy, even if you're not an remote advocate the option should exist for people who want to work remotely like me. Unfortunately, too few companies allows remote work to the degree I've been lucky to get. Maybe it's time to move some repos to Gitlab!