I know Google has said historically ads have nothing to do with organic traffic, but my research has proven otherwise. If you have Ahrefs, or another backlink tool, go to any highly competitive keyword (like "loan payment calculator") the first organic place you'll get might be bankrate.com. Check their backlinks and you'll see millions of backlinks from yahoo finance, and if you go to those pages, you'll see... you guessed it... display ads!
And it makes sense! Display ads are backlinks to your website, so how is Google not lying about ads affecting organic traffic here?