That’s an issue, but it’s not an issue for your job to solve for you, especially not when “solving” it would negatively impact the rest of the coworkers who prefer the benefits of WFH.

The most common advice I’ve seen about stuff like that is to get involved in hobbies that have clubs or groups that meet in your free time. You can try out new things or join a club about stuff you’re already interested in, and you’ll meet people doing stuff that you’re interested in and sometimes they can become your friends.