I mean... Yeah. I'd much rather Mozilla serve me ads that help them fund Firefox and be less reliant on Google while also being less evil than Google. If I have to choose I'll take ads that don't use as much data from me even if a little bit, as long as it's not Google or meta levels
I look at the Open-Source/Foss ecosystem and see amazing projects being built, tested, and utilized. All the while lacking the advertisements that some people seem to think are pivotal.
That may also potentially be survivorship bias. IMO the only open source projects that would live to tell the tale are:
Foundational projects that are critical components in major tech stacks, having a backing in the form of funded developers or donations from companies involved in those tech stacks
Enterprise-scale projects born out of a consortium of companies
Hobby projects that the creators aren't relying on as their sole source of income
At least two of those categories are reliant on funding from companies, which in turn relies on either their well-entrenched presence in their respective market, or their ability to market themselves effectively (ex, via advertising).