The English results are pretty good from what I’ve seen. Hit and miss in some areas though, like if you want to search in quotes.
Simple searches in other languages seem to work OK. It might depend on the language though. Google does better overall.
The strange thing to me is how much the Youtube search results and suggestions have changed, even just in the last few months. I mostly go there to listen to music and I used to get stuff I was actually interested in.
Yesterday I went looking for a specific video. Of the top 15 results, only 2 were close to what I wanted. It wasn’t even the top 2. One relevant result, then a bunch of political clickbait. Zero connection to music. And the autoplay will feed you the same thing if it’s on.
A couple weeks ago, YouTube was still giving me a whopping 3 relevant results at the top before turning on the BS algorithm hose.