I feel great about getting back and, if you are vaccinated, the risks are really low for becoming seriously ill.
I returned in mid-April after I had gotten both shots. Then there were capacity and time-limits, masks required of all, no locker room and no showers. Temperature checks at entry were required, as was washing hands before working out. And everyone was issued their own sanitizing spray and wipe-down towel, which were used by all. But hardly anyone was there (less than 10 while I was there for the first few weeks in slower mid-afternoons). I had missed my workouts too much and wanted to get back to the shape where I was pre-COVID. The masks certainly were not fun for some of my more strenuous workouts as it took too long for me to catch my breath. I had initially lost almost all of my core strength, and my workout weights were reduced by 30-40% compared to pre-COVID.
Fast forward to June, masks were only required for those who weren't vaccinated, and both the showers and locker room were open (the sauna has opened since then but not the whirlpool). Now, in mid-July, I'd say that the gym is almost 80% of its pre-COVID population, about 20% are wearing masks (Sonoma County has 70% of eligible adults vaccinated). Everyone is still being given and using their own sanitizing spray bottle and terry wipe to clean equipment. And we are very respectful of those still wearing masks.
I am really pleased to share that I am finally at, and in a few cases, above my pre-COVID weight lifting levels, and my core is back to 100% strength. It's been fun working out with so many of my gym acquaintances and friends as we all strove to re-build to where we were at pre-COVID. We're a tighter group now after months of mutual encouragement and support, and I have to say it's great getting compliments from guys half my age who say their goal is to look as cut and built as me!
So keep at it, hzs3fg!