I'm a bit mixed on the air travel mask stuff. Not sure I'd call it theater in certain circumstances.
Cases are low, but air travel is the fastest way to spread to different parts of the country. And, while I've personally said how well the air is filtered on the plane, that's only true when it's flying. When you're boarding, waiting to take off, taxing, it's not filtered much at all. I may be wrong about that, but I'm under the impression it's only really working when you're pressurized and in the air.
Also, while a very loud minority really complain about masks while flying, most of us, who are only mildly annoyed with them just deal with it and some are very happy to keep it going. I still see elderly people who have decided to keep up with masks in public.