I tried Chrome, Firefox and Edge with default and incognito/private/inprivate sessions. My Chrome default is logged into a google account. I get varying results

I tried Chrome, Firefox and Edge with default and incognito/private/inprivate sessions. My Chrome default is logged into a google account. I get varying results. None that I see match the original post ("only returns ads") but I see from 0-8 ads on the first page. All three incognito result sets are the same: first "Scholarly articles", then 9 quality organic search results, then a "People also ask" section, one more search result, then three marked "Ad" advertising for medical conferences, and finally "Related searches" at the bottom of page 1. The signed in Chrome has the same except omitting the "People also ask" and the three ads. The default Firefox has 5 additional ads at the top of the page but is otherwise the same as the incognito results. The default Edge has 4 ads at the top of the page and no ads at the bottom, with the other parts being the same as the incognito results.