I know you can sign in with your youtube account. You might be able to port them to youtube music and then see them in metrolist if that makes sense.

Safari with WBlock extension, and SponsorBlock

Orion browser works too, I think it has Ublock Origin support

This. At this rate everything that has growth and not open source is just a resource to exploit.

The purpose of?

I think everyone saw $$$-printer that AWS is and now the most evil people you know are trying to emulate it. That will buy them a lot of chocolate.