Sponsorblock, which unpads the vids.
Not sure if i’d say that Sponsorblock upads videos, or at least it only does so partially. It does remove in-video advertisement and selfpromotion, but it doesn’t (and can’t really) change anything if a video e.g. has content to fill like 3min, which gets drawn out to 10min.
The way we do it here in Germany is that all bottles make you pay a deposit, which you get back, if you return them to a collection point (e.g. at a supermarket).
According to this article it’s working really well, with return rates of 98%.
So at least for most bottles there is a proven solution.