Don’t get me wrong, I use Beets for my entire library, but it doesn’t solve any of the issue OP has. It does not get metadata from streaming sites or anywhere else, but same as Picard from Musibrainz. It does not allow to manually change metadata of music you are importing. On the contrary, for that Picard is the better tool as it allows that.

There are not many advantages of using Beets over Picard, apart from CLI, and especially for the OP use case.

Beets is great but it also uses musicbrainz so won’t really help OP.

Ubuntu -> Manjaro -> Arch -> Gentoo -> NixOS

Czechia, same here. Same old Russia wants to invade all of Europe so we have to defend ourselves.

Unfortunately, misogyny is extremely prevalent in popular media. And not just in media. I myself always only considered women as my equal and as human beings (it is terrible that this is something that needs to be said…). But even so, I always find that there is some deep-rooted misogynistic concept that I picked up and have to educate myself out of.