Boyztown was already quiet before COVID. I’m not sure about high season because I’ve never been, but in low season it’s been quiet every time I’ve visited. When I was there in august, on a Saturday night, it was actually the busiest I’ve ever seen it. Every seat in BoysBoysBoys was taken. (However, there were also quite a few women). That said it was quiet all other nights.
Jomtien Complex is a little livelier but it’s unbearably loud for me. The bars there have an ongoing loudness war. The drag shows there are also insanely loud, as in hearing damage loud. I wouldn’t go without ear protection. (I know Thai bars are loud in general, Jomtien was even loud by Thai standards)
In Boystown there are a lot of older boys right now, but there’s still a few younger cute ones to be found if that’s what you’re looking for. BoyzBoyzBoyz still has at least 4-5 very handsome muscular guys to choose from. Also one, not so handsome in the face, but extremely buff bodybuilder guy if that’s your thing. He’s also a lot friendlier than he looks, and he speaks good English.
If you’re still deciding where to go in Thailand however, I would say that the scene is better in Bangkok right now. All the go to bars there are quite lively, with a large selection of boys to choose from.