Yeah, like you,
Doctor Carrot, the biggest hit I've taken is in my perception of "the public".
This pandemic has brought home forcibly just how disconnected as a society we are - I had some sort of fond notion at the beginning that, faced with a common enemy, people would largely knuckle under and pull together.
To be fair, I think that this probably HAS happened, and it's just the noisiness of those who refuse to act in the common good that makes them so noticeable, but the endless stories, like yours, of people being abused and harassed for either wearing masks, or asking other people to, is distressing and dismaying.
Perhaps because I'm fortunate in not having to deal with such idiots on a daily basis, I've tended to do my best to ignore their idiocies, and focus on the decent, kind, socially responsible people around me.
Like you, I've learned that my social interactions are precious to me, and I take them a lot less for granted - in fact, several great friendships have developed over lockdown that, as things have eased, I've been able to appreciate and enjoy more, and I am 100% sure that I will never be quite as ready to take social contact for granted ever again.