I live far outside of metropolitan areas -- pretty much a dying small town in the rust belt. Our gyms and showers are open, but those coming in are far less. And some of those who do aren't showering -- even though the gym showers are rarely even at 50% capacity -- usually about 25% if that.
But due to Covid, I'm working more days at home. Being that my regular gym is in a neighboring small town -- a good 30 miles away, I'm not getting into the gym as much. In the Summer I was running outside, but now that it's Fall -- I'm trying to get to a local gym on the days I work from home. The gym I usually attend has been around for years and has many amenities. A lot of members know each other -- membership ranges from high school kids to those in their 80s. The majority of members do NOT shower, but those who do are typically friendlier than the rest. Of those who shower, only a minority will undress/dress under a towel -- and it's mostly guys in their 20s.
So the local gym is one of those franchise gyms with a lot of purple. The members don't seem as friendly (I've only been there a handful of times, but the members seem much more distant than my regular gym). The last time I was there, I saw a couple of guys in their 30s use the showers (they are very private and cavernous), and one came out wearing his underwear -- another slipped them on underneath his towel while sitting on the bench). One stocky guy in his 60s came from the shower completely naked. I wore underwear into shower, but dressed at my locker. Was probably seen by the guy who dressed under his towel, but it's not a big concern of mine.
Today all of the other showers were taken when I was in mine. After I left, I saw another guy around my age (50s), freshly-showered at his locker in his underwear. I would guess that he didn't dress under a towel, but that's only a guess. An older dude -- 70s -- undressed to underwear. When he came from showers, he grabbed some stuff from his locker and disappeared -- later coming back half-dressed. I'm guessing he got dressed in a restroom stall. That was surprising because of all the guys there -- he was the one I'd least expect to be concerned -- and the last one anyone would care to see naked. Then a dude probably a little younger than me with a shaved head and a year-round tan came from the showers in a towel. He didn't look like the type that would give a shit, but he turned to face in my direction and hiked up his underwear beneath his towel. That may be his regular mode of operation -- or maybe it was because of the new guy (me). All of this was seen with my peripheral vision -- I made sure not to turn my head in any one direction while dressing. No one said a peep to each other -- and I have to assume that there is just a lot of distrust among members. Some of it may be due to not wanting to be recorded (everyone knows it's a possibility) or maybe they really just don't want to be seen naked by anyone else -- particularly strangers. I'd go to a different gym if there were any nearby open before work.