I am not going to watch billions of Videos.
Its not entirely ad free, just fewer ads, AFAIK sponsored segments remain so there are still ads, sometimes quite lengthy ones.
$14/month is $168 an year, and if you subscribe to multiple other video services the annual total is going to be quite high.
YouTube is 10x the quality and 10x the quantity than any other video service.
As for the ads, YouTube Premium now has built-in sponsor skip. They can't really block sponsored segments, as that is a freedom of speech issue and also something they can't easily determine. Creators can just omit that some product is sponsored.
sponsored segments are skipped with a single button push, so they are negligible. it also comes with yt music