In the UK people don't seem to get too upset about it. I was just at the supermarket and only a few people were wearing masks. Just minimising contact and proximity probably does as much good. Of course people with health issues need to be more careful.
I feel sorry for any actual Karens out there.
Yeah, pretty much the same in Mongolia. Of course we've managed to avoid local outbreaks in Mongolia (all our cases were brought in from outside the country and quarantined on entry), so we can afford to be a little relaxed about it. While I personally think wearing a mask in a moderately-busy supermarket is prudent risk management, I also find the people yelling at the non-mask-wearers in the stores are acting like jerks. As long as somebody isn't a heavy breather and getting too close, I say just leave them be...
As for the 'Karen' meme, as far as I've read most of the people actually named 'Karen' don't take it seriously or personally. Sure it sucks a bit to have a name associated with a negative thing, but sometimes that just happens. And it certainly pales in comparison to the poor people that share the name Epstein or Cosby! 😉