This excellent writeup explains Google's explicit decision to destroy search (on February 5th, 2019) using email exhibits from the DOJ antitrust trial they lost:
https://www.wheresyoured.at/the-men-who-killed-google/
tl;dr: Late Stage Capitalism demands "growth" in metrics like "how many searches" and "how long spent on the site", so "get the right answer immediately" was intentionally replaced with "search several times" and "comb through pages of trash".
Well there's a follow-up post now: