Yusheng Du was some Chinese cuber that few people have heard of who averages about 8 who just happened to come up with a really good solution that others didn't and got the world record with it.
Speedsolving metas are still CFOP and roux (and possibly ZZ)
I don't know of any notable alg sets.
other news: Cubers have realised that Gan just release the same cube with minor changes every few months, 6x6 hardware is no longer horrendous with the release of the
MGC 6x6x6 and there have been no official Cubing competitions since march sadly.