I've just, unintentionally, seen in 2021 over here playing Your Deep Rest by The Hotelier. Which feels like a very chorus.fm way to 'celebrate'.
This year, I was listening to the best song of 2020 as the year ended: Was too lazy to try & time things perfectly, & intentionally didn’t pay attention to the time during the song, but I’m pretty sure it hit midnight towards the beginning of the bridge/outro. No on the nose New Years song this year for me, but when I do, U2 has my favorite one. The Pale Waves one is really good, too.