Hi @Aime123, thanks for writing!
There are some playlists in the Electronic/Dance genre that are curated in a way that the songs' sequence reproduces something like a DJ set, with beatmatching. This way the transition between songs gets smooth and synched.
If you don't like it, I suggest a workaround by copying the songs and adding them to a new playlist made by you, so that this kinkd of crossfade doesn't happen.
Let me know if you have any other questions 🙂