Not Nirvana, wrong genre. But it wouldn’t be out of place on one of my metal stations, but I don’t have to wait for that because now I have a station based on them, thank you for that.
But Morbid Angel came up after a few songs (to be fair it was a more recent song) and that’s kind of my point. Stations based on a 90s band will get me recent stuff and vice versa. If I make a Who station, Elvis doesn’t come up. If I make a Joplin station, L7 doesn’t come up. You usually get a pretty narrow time frame for anything pre-90s, after that it’s anything goes.
That’s not to say Igorrr sounds exactly like anyone from 30 years ago, but it’s an evolution as opposed to a revolution.
Edit: several songs later I got NIN, Mr. Self Destruct, it doesn’t get much more 90s than that.