> If it's inaccurate and misleading, it's a bug.
> If they've noticed it and kept it, that bug has become a feature.
It's a filtered mess.
Search for test and then search for test test in two different tabs. Once the results appear, switch between those tabs. The estimates of results radically differ from each other, and the results are not shared between those two tabs. The tabs should return mostly identical results due to the keywords, but they are not even close to each other.
If you look at the types of results shown between those two tabs, the issues with search results being filtered will be immediately shown. One tab will show 98% of the results filtered to show COVID-19 information with a little bit of results for sites that charge people to train for standardized tests. However, the other tab shows vastly different results about network speed tests, test.com, the word test at wikipedia, the definition of the word test, the etymology of the word test, etc.