Your first point is the part I'd like most to change with this.

I live in an apartment with three other people. It's fine when we're all coming in and out and spend all day at work.

But now that 3/4 of us are at home, and confined to our rooms it's getting annoying. There's no good public space, and none of us share any interests.

I live and work in a single room, and I wish so much I could move to somewhere with more space. If I were full time work from home there's no reason I'd need to live with other people. The only reason my rent is so high is because I live near a city which I have to do to work. I suspect this is true for other people as well, and if we saw a greater amount of full time remote people would spread out a little.