It really depends on what you are looking for. If you are searching on a term that is used by business you will get mostly shitty content. But if you search for things that make no money, for example. "diff with prosemirror" or "travelling with monitors" you will get very relevant results.

I don't think it has a lot of to do with new search algo. I think it is the opposite, the algo is mostly the same as a decade a ago, but now it is abused by SEO expert. And Google doesn't seem to care yet