First, welcome to the forums.
And second, Yes! Absolutely I feel the same. We are working from home at the moment and I love it. I do not miss seeing people at all (except my mum who usually visits every week).
I am also worried that I will have a hard time returning to work. I'd love to work from home full time, but I know that wouldn't be very good for my mental health long term
I like that your post has challenged me to think about what I can do to make the transition back easier.
One thing I am doing is participating in the companies 10,000 step program. Which is a big online social group keeping me connected to my colleagues. And also helping me get exercise.
Is your company doing anything to keep all your employees connected? Maybe you can suggest something?