Chance of getting Covid at a poker table where no one else cares seems reasonably high if others have it, but I don't see any statistical signs of a big wave in Nevada. Could be concentrated at WSOP easily enough. I don't know if they'd let you wear a P100+ mask at a poker table or not. Chance of anything actually happening to you if you get it is still low of course, but I do think this is a 'how much do you mind a bunch of Covid risk' situation.