> We’ve raised over $17 million dollars from a diverse group that includes the founders of Instagram, Stripe, Twitter, Zoom, Figma, and LinkedIn.

https://thebrowser.company/#15

> We may also de-identify or anonymize Personal Data to further our legitimate interests.

https://start.arc.net/privacy-rights-by-region

Closed source, as far as I could tell.

It looks like a really nice product but the combination of these little factoids and their divergence from claims made on the browser's primary marketing website does leave me feeling a little bit uneasy.