Alright listen up, you are meeting someone for the first time or carpooling or you met a friend of a friend and how do you get to know them best? Through their music taste. In fact, you really want to be jamming out with them but you just don’t know what songs they like and you really don’t want that awkward silence when you know a song and they’re like.........uh......... I don’t know the words. What’s the solution you ask? A friendship playlist. You would find your friend on spotify and there would be a button next to their name that says “friendship playlist” which would automatically create a collaborative playlist consisting of all the songs you have both put on your playlists, 100% guaranteed bangin’ time while you both sing along to the songs that you both know!
There is something in Spotify called Blend, which lets you send a link to someone and Spotify creates a Playlist of 50 songs that both of you should like. It's under Search -> Made for you -> Blend. It's still in Beta so idk if this is availible to everyone or just people that are in the beta program. But I still agree that a way to merge playlists or create a Blend without having to leave Spotify to send a link would be nice.