[AhtiK]

It's about target platform and time spent.

Youtube Premium is a perfect proposition for an easy ad free streaming to TV and to mobile. On Desktop browser adblock extension is efficient enough to cut out the ads.

Google search on the other hand is primarily for desktop and is not a streaming platform that consumes your attention minutes, hence Google Premium has little market with effective adblockers.

[smoovb]

The product needs to be Chrome Premium, which blocks all ads, on all platforms for a fee, where a share goes back to the sites you visit most.