I forgot to mention. To get Ecosia financials, you can request them from the applicable oversight office in Germany. Aggregates, like Candid, have access to that too. That’s the sort ofndue diligence I’d expect; not a link to their oversight page and suggestion they are hiding something. Many large nonprofits have financial overviews like that, and doesn’t suggest organizational rot or greenwashing in this case.

A quick glance suggests that in Germany, you can request a social benefit corp’s financials. If like nonprofit law in the USA, you can request a 990 from any 501©3 and they are required, by law, to provide one within a certain time frame.