Many of these articles/complaints don't compare Google Search to alternatives (Bing / DuckDuckGo / ...), so it's not clear whether web search itself is getting "worse" (in the ways mentioned), or whether the issues are with Google Search specifically.
(For example, the article proposes the explanation that "The long answer is that most of the web has become too inauthentic to trust", which is about the web itself, not specific to Google.)