Maybe I'm just old now, and I legitimately don't know how people learn about new music anymore.
Yeah, I know there's spotify, but when I'm on there, I generally just listen to playlists that are made for me based on what I listen to - which is all 80s metal, 90s punk, and 2000s alternative. It never really plays much that's new, and when it does, it sounds like a rip-off... such as Royal Blood - who pretty much is just a wannabe Black Keys. Maybe I just don't know how to use spotify correctly, or I'm hyper critical. I dunno.
back in my day (ok boomer) I had terrestrial radio as my chief source of new music, but that's generally gone the way of the dodo for better or for worse. I learned about new bands all the time from the few DJ hours that I would accidentally tune into, and discover new shit that doesnt get played on the regular rotations... Some days were 'meh' and some days were 'oh shit that sounds cool!'
How do you guys discover new music? The stuff thats actually good and not just the top-40 type shit that's sold to us by whatever hollywood style hype there is out there.