Try using Amazon in Safari sometime (in Lockdown Mode, no less): non-stop ads (some which flash), sponsored results dominating the first page of search, random Dufus pop-ups forcing AI. You can hide "distracting" elements but they just appear again later. Safari is not a user-friendly browser.
Safari is my default browser. I don't know what "Dufus" means, I don't recall any A.I. references. On Amazon, it's all first-party stuff, what browser blocks that natively? It seems like you're comparing using Safari without an ad blocker to a different browser with an ad blocker.
I know the most popular ad blocking extensions don't make a Safari version but there are ad blockers for Safari.
I don't get any of that in Safari or any other browser. "Rufus" is just a button in the main navigation, between "All" and "Same-day delivery" that I ignore. On individual product pages, there's "Ask Rufus" stuff in a couple of pages but it's no worse than other content I scroll past and seems just like previous features that didn't have a named AI identity.