openSUSE Slowroll and Secureblue are my favorites ATM. Slowroll for gaming, Secureblue for mobile device. Both are hardened for security because that matters to me.
e/OS/ is often behind on Android monthly security patches by a month or more. Insecure and not very deblobbed of proprietary blobs, especially when compared to GrapheneOS.
It is definitely a Firefox fork, the images of the UI are near identical to Firefox, and the one with addons shows the option to search addons.mozilla.org
Legit goals