2000s, like others have said, was pop-punk, emo, nu metal. 2010s were cloud rappers, mumble rap, and bro country. 2020s I think are seeing a resurgence of pop, though with more aggression (both sonically and lyrically), and progressive subgenres of larger genres, as well as a lean towards inclusivity regarding sexual identity and preference. We won’t know until it’s over, though. We aren’t even to have half-way mark of the 20s yet.
The most serious. I will go to court over it.