Of all the ways to critique Brave, consider Mozilla's exploration of "other funding options" has recently been digital advertising. They purchased two advertising companies - Anonym[0] and FakeSpot - and have integrated FakeSpot directly into Firefox. Mozilla has an ad sales division [1]. Mozilla even added extra telemetry just for advertisers[2].
[0] https://www.theregister.com/2024/06/18/mozilla_buys_anonym_b...
[1] https://www.mozilla.org/en-US/advertising/formats/
[2] https://www.privacyguides.org/articles/2024/07/14/mozilla-di...