This relates to Chrome, not to search. In regard to search, they have taken a new direction that I don't think is going to change any time soon. Some time in the last 2 years, they started removing any thing that doesn't get significant natural traffic (ie: have a 30 year old user manual for something odd that people only search for once in a while? -> removed). Last few months, I noticed that they will not index anything that seems broad (ie: if similar content exists, they won't index it regardless of your page authority).
Basically, they are turning search into Tiktok. If you try to make a search, you'll notice that now they give precedence to AI overview, Youtube, News stories, Maps, Products, etc. Anything but content.
tl;dr: content is dead in Google search.
> This relates to Chrome, not to search.
To me, it appears to relate to search
> Pages that are engaging in back button hijacking may be subject to manual spam actions or automated demotions, which can impact the site's performance in Google Search results.
Try Marginalia Search but be warned it doesn't index the entire web
What aggravates me is that somewhere at Google headquarters some asshole thinks he's a fucking genius for turning the web into nerfed walled garden