Web content itself had gone to shit these days, in order to win google’s SEO game to win google’s Adsense game. “Google going to shit” is just a second order effect (or third/forth depending how you look at it).
The good content has not disappeared. So it is still google going to shit if it can't make up what is good and what isn't, which was the reason people started using it in the first place 25 years ago.
Google search has gone to shit since Google+ .... or more precisely, when they removed the plus operator in Google search around 2011. And no, the quotes aren't as good.
My bet is that Google will become "Google TV" and search won't be possible. They will just show you what they want. They'll probably frame it as "AI knows what you want to see".
Maybe they should ban Google instead of TikTok (I don't use either though).