Sponsorblock then skips embedded sponsor segments too.

The day YouTube incorporates something similar to sponsor block in YouTube premium will be the day that I actually buy YouTube premium. I think if YouTube premium advertises that they remove the ads, they should remove all of the ads including in video sponsors.

They probably should share YouTube premium revenues with content creators then

They already do

I mean honestly though. A while back I was deciding between getting youtube premium or spotify for music, and I was leaning towards youtube except for two things:

1) youtube was refusing to take my money. I don't have a credit card and youtube does not support any other payment methods.

2) youtube premium at the time would STILL show you ads. It just promised they would be "less frequent".

Yeah on desktop browsers , UBlock origin works well. But haven’t found a solution for mobile app. (IOS). Any recommendations?

Orion browser for iOS is a tad rough around the edges still but its adblock works very well

Yattee might be something to look into. https://github.com/yattee/yattee

uYouPlus [1] doesn't require a Jailbreak, just sideloading. It implements SponsorBlock as well.

[1] https://github.com/qnblackcat/uYouPlus