Just remember this, what is or isn't metal grows almost every day, we have new genres and styles being birthed constantly, just because it's not some dark fast and growly shit shouldn't matter, especially when that stuff never even occurred to the originators of metal. The metal "purists" among us are always the incel-ish douche nozzles who hold back the genre, good music is good music, just ignore the troglodytes and enjoy it.

Also these are the same people that bitch about betrayal from bands like Opeth and Mastodon and all of the other bands that started hard as fuck but now continue to evolve through switching from Death or technical death to progressive metal/rock, they're still making fantastic music, they're just better musicians now and don't have to cover it up through the screaming, volume, and speed.

(Metallica is the main exception here, they're devoling and every album sounds like their last four, please for the love of God Metallica give us another Master of Puppets or ...And Justice for All before i die.)