I find myself using the `site:` keyword much more often than before when searching for quite obvious stuff using Google Search. The first page of search results

I find myself using the `site:` keyword much more often than before when searching for quite obvious stuff using Google Search. The first page of search results always consists of some useless SEO-optimized shit or is simply missing relevant results. A month ago or so, when I was researching some MS tech topics, Google Search results did not include any links to the docs.microsoft.com website. However, the results included some Chinese mirrors of docs.microsoft.com with weird names (blablahxyz321.GFWproxy.com or something like that). This never happened before, so something is really broken. And it's just one example of many. I have to switch between three search engines thorough a day, and it's frustrating.