Spotify to YTMusic migration & liked songs??

Hey all, so after a very long time I decided I'd try switching from Spotify to YTMusic. A must for me was being able to transfer everything from Spotify. So I subscribed to YT premium and I used the TuneMyApp feature and it did transfer everything, but it just created a playlist called "Favorite Songs" with my liked songs from Spotify, even though YTMusic HAS liked songs, just like every other music service. So, why didn't it go there? I have no use of a separate playlist with all my liked songs from Spotify, only to have to like them all (there are 1600+ songs here). What gives?

Also, I seem to already have a few hundred songs in the YTMusic liked songs, maybe from past experiments. Is there a way to bulk unlike them? Basically, I want exactly the situation I had in Spotify, but in YTMusic. Here you can get YouTube Music Premium Apk ad free Thanks in advance!