I'm doing well. I expected I might feel lonely or isolated, but I don't. It actually feels very natural. In a way, I like it, because it gives me a socially approved reason to indulge my introversion (rather than feeling half-guilty because I'm "isolating").
It helps to have a dog, and to be a dog lover (vs. someone who "has a dog" but keeps him/her out back). I'm not really alone in that sense. I connect pretty well with my dogs. We're new to each other -- I adopted him 6 months ago -- so this has been good for us. Lots of time together, and he's a good companion.
I had some regular social activities before this (e.g., classes, discussion group). I don't miss them, but it will be nice when they can resume, because they are stimulating.
I'm in a modest-sized town without too much of a CV problem, so things aren't as tense and rule-bound as they might be in large metro area. I'm always out taking walks, biking, or driving for "non-essential purposes" such as enjoying the day. Weather has been nice (it would suck if the weather prevented going outside).
I've noticed that, when this began, chats with neighbors were very distant and often involved nearly shouting back and forth. Now it's more relaxed. I just had a chat with neighbors while standing a foot or two apart, petting each others' dogs, with no one worried about six feet or no-touch rules.
Anyhow, I'm doing ok. The main challenge is filling the time without lapsing into one of my favorite time-wasters (e.g., Youtube, social media).