Most of the playlist with high number of follower that IVE has, other has it as well like global viral, kpop daebak, top 50 (country), etc...
The reason why Love Dive peaked at around 42M is because they were in the top 50 of Spotify global with 1.4M streams which make them in the "Top 50 - Global" playlist that have 16.9M followers. Which is the reason why Love Dive peaked around 40M+ in mid-April.
I don't know if having 20M+ playlist is normal, but le sserafim peaked at 28M playlist reach.
Top 50 global ain't a playlist it's a chart
, this makes no sense.
Look IVE definitely has a lot of casual interest but they did also have a lot of playlist push, But the playlists wouldn't do a thing if the song wasn't good