I’ve flown on Southworst and Alaska over the last few months. The middle’s remain empty, flights range from half full to totally full (minus the middles). I believe that’s going away on a carrier by carrier basis. Everyone’s wearing a mask but few people are wearing gloves, hoodies, goggles or using wipes. The masks are mostly cheap made in china kind, I didn’t see many N95/equivalent. No meal service and drinks are limited to usually water plus cans of soda. Snacks in the form of nut mix or pretzels. Lots of folks bringing their own and masks off in flight isn’t uncommon when eating. I anecdotally haven’t heard anyone coughing/hacking, all flights have been quiet.