Firefox and chromium are open source. You can just remove mozilla and google telemetry during compile, or disable in the settings.
Fingerprint is 100% still useful even with telemetry. This is not a privacy browser and is still in early stages, volatile and easy to fingerprint (not even counting it is a different web engine and so has an even smaller userbase than Firefox). Also, a content blocker is good for cyber security, so regardless of fingerprinting, this is not ready for privacy-conscious people.
I made my original comment to add context about why this browser shouldnt be used if you care about privacy. If OP had said "this is a promising new independent player in the browser world, look forward to seeing what they do in the future when its more stable" I wouldnt have said anything.