I had a similar thing after the pandemic! I was a bit fed up of working from home, so then went back in for a couple of days a week. We were soon expected to be back in the office full time and it just wasn't for me anymore. I was much more stressed going in every day, so much so, that I've actually left and found another job where I'm working (almost exclusively) at home.
I love it so far. I don't really have a routine other than my working hours are 9-5ish. I'm very disciplined about getting the work done so I can log off at 5ish, and then not worry about it until the next day.
I like the flexibility of being able to take each day as it comes. I can go for a walk before work if I fancy it, I can deadhead the roses, do a workout or prep dinner at lunch time. I'm then much less stressed when my husband gets in because I'm not getting to a stage where I feel like things are piling up at home while I'm out for 10hrs a day.
We're also TTC so this is part of the plan both for pregnancy and return from mat leave (assuming it all actually happens!).
So in a nutshell, no I don't miss the office, but I do go in every fortnight or so to check in.
I do have boundaries by having a proper work station and am disciplined about walking away.
I see enough people each day, both on Teams for work, and friends/family. In fact, find I have more emotional energy to spend with the people that matter in my life, rather than on colleagues!
I'm not sure I could do it forever, but it definitely suits me best for the foreseeable future. I cannot see myself wanting to go back to an office full time.
Mentally, I feel great. I'm not as tired or as stressed. I can just get on with my work, look after myself and keep on top of the house better. Feels like a win win at the moment!