It's certainly personal. I live alone for the last 11 years and I remember the pandemic as the worst period of my life exactly because I couldn't interact with people. Surely moving to another city just before played a role, but I realized that one week stuck at home was enough to drive me completely insane. While going to office doesn't replace normal social life, it's still something that helped me before. After the pandemic I kept WFH, but found a relatively big and diverse friend circle. Now I treat social life as something mandatory like food and sleep because I learned that even "going out" alone (grab a dinner somewhere and go to a cinema or something like that) barely helps when I need to connect with someone and have a meaningful conversation. And yet, some of my friends are exactly like you, they barely noticed the pandemic and were perfectly happy to stay at home and tinker with their side projects.