I have TONS of playlists. I have some created for certains vibes, but also A LOT of playlists with random names which I create on a daily basis to perfectly match the mood that I'm currently in. The playlist can be almost identical to one I created the day before (...or even an hour earlier), but without 2 songs and with added 4 different ones, because the mood is slightly different. Very slightly, but still
and as I create so many of them, I usually don't go back to them when I have similar mood because it's hard to find that exact one, sooo I just have to remove some of them like once a month
My longest playlist, which is just a placeholder for all the songs from other playlists, has 1361 songs (~85h of music). I usually don't listen to it, as I get irrationaly irritated when there are songs playing that don't match my mood, it's just for me to remember about those songs
I only listen to this playlist when I'm a kinda chaotic state myself 