In UK Oasis made even bigger impact than Nirvana and you can still see Oasis' influences all over the country. Also Oasis seems to be the no.1 band amongst football supporters all over the Europe. Yeah, they were 90s band but because of their big tours in 2000s they kept attracting lots of new fans in 2000s too.
But since you asked specifically about the Millenial bands I'd say The Strokes and their debut album Is This It made really big impact on pretty much every indie rock band we got in 2000s. For example, you can clearly hear Strokes influences when you listen to Arctic Monkeys 1st album.
This is actually really great book about the subject: Meet Me in the Bathroom: Rebirth and Rock and Roll in New York City 2001-2011
Ah cool, Amazon provides a sample content with purchase of the book that includes two chapters on JFE. Here are image grabs of those two chapters, if anyone's interested.
https://ibb.co/iC72fv (Chapter III, part 1)
https://ibb.co/gmH2fv (Chapter III, part 2)
https://ibb.co/nLZR7a (Chapter III, part 3)
https://ibb.co/keJVYF (Chapter III, part 4)
https://ibb.co/mqJm7a (Chapter III, part 5)
https://ibb.co/htdVYF (Chapter III, part 6)
https://ibb.co/ctFYna (Chapter IV, part 1)
https://ibb.co/iTPtna (Chapter IV, part 2)
https://ibb.co/dTFcDF (Chapter IV, part 3)
https://ibb.co/niqYna (Chapter IV, part 4)
Paul's diss on Sarah Lawrence gave me the chuckles. Didn't Ham go there? Oh god, I'm crying laughing at nearly everything Paul has to say, he's so god damn funny.
The playlist for Bradley’s 30 Min Indie Rock Ride was SO good! I just finished reading Meet Me in the Bathroom and have been going through major nostalgia for that whole early 2000’s period and this ride had it all. The Killers! Kings of Leon! The Strokes!!!!! I might do this again this weekend it was that good
check out this book. all about the post 9/11 rock scene in New York https://www.amazon.com/Meet-Me-Bathroom-Rebirth-2001-2011/dp/0062233092
I lived in NYC [Brooklyn!] from '97-'05. They were a big deal there. I specifically recall the excitement and rollout of Antics in 2004. There certainly was a buzz after the horrible events of 9/11 and the music in NYC, Interpol included, was a huge deal. I highly recommend reading Meet Me In The Bathroom if you haven't -- that paints as close a picture from those on the inside [which I most definitely was not] but excited to be there while it happened.
https://www.amazon.com/Meet-Me-Bathroom-Rebirth-2001-2011/dp/0062233092