What are you not able to block on YouTube? I've had all ads, shorts, those games, etc blocked successfully for years.

Usually selecting is something like .class.subclass:nth-child(4).

Which will sometimes block what you want, but not always since they switch their layout so much.

You need conditions.

Its really finnicky to get right and I usually want to block views on cards, recommended tabs, trending and I have to redo it every 2 or 3 weeks.