It's became a subset of furry pretty much, like the Avali from Starbound modding, or Yinglets from [looks it up] oh [wikipedia](
https://en.wiktionary.org/wiki/yinglet) doesn't mention where yinglets from from. [looks it up on startpage] They're from Out-of-Placers webcomic.
Like It's still very invested in it's source material, I see people on fedi organize watching parties now and then. But just it's not the Brony Social Phenomenon anymore, just "here's by blorbos from the horse show."
I think Uma Musume reminded people that were bronies about it so there's been a resurgence, but like it's always been pretty steadily present.
>>7254704chan as a whole is pretty dead.