I will say that google music recommendations in 2018 still has every engine I've used beat by a landslide. Nothing has correctly recommended music to me since then.
Oh I agree that it's terrible, and that's what you should be expecting with ads, as a majority of the money goes towards funding the terrible YouTube experience. If you really want to support your content creators, send them money directly. $5 directly to them will improve their lives more than 3¢. If you don't want to go as far as directly funding them, try patreon even.
Lickidick