As others have mentioned, it might be in the interest of browser vendors to get you to perform more web searches.
I don't know what browser you use, but personally I feel Firefox at least does a slightly better job than the competition at highlighting your bookmarks when you start typing in the search bar. Not sure if that is objectively true of course.
ungoogled-chromium is a project that removes Google integration from Chromium. Here is the patch they use to remove this special treatment of Google sites:
On that note, I noticed recently that Google search result links (on Firefox?) get rewritten. That is, you see the actual page URL when you hover over the link, but it's changed to their own redirect URL as soon as you click it.
I'm sure they've always been tracking these search result clicks, but I think this is a somewhat new behavior, and I find it highly deceiving.
Chrome sends back your click 'behind the scenes', whereas Firefox does not, so Google forces you to click through their link so they can track your activity (and if you hit the back button, you also jump through their redirect)
Ublock Origin can block this behavior. Here's a posting with links to more resources on hyperlink-auditig
https://www.serenityos.org/