Working remotely doesn't mean you should never see your colleagues, or set foot in an office again. It's a choice, not a demand.
At Slite we gather every 3-6 months for regional and all-hands offsites (called OffSlites). These weeklong gatherings are productive and social. Slite colleagues who live in the same city often cowork together. When out-of-town colleagues visit, they're invited to share space.
Changing your routines and location allows you to shake things up mentally, and being close to teammates can be motivating and fun. Don't let "remote" mean "lonely."