There is no difference, it's just an another chapter of the recent drama that took place on x.com. Whoever forked Godot didn't do any dev work yet, so this is effectively a copy of the original repository with a changed name and therefore it has no place here.
It is a purely ideological fork. Some people really didn't like that the Godot twitter account was posting explicitly leftist games (gamedevs with leftist politics? what a shock.) and then they started harassing the devs on github, got blocked, and then forked the engine. It's embarrassing that this is near the top of HN.
The mass-bans on the official Godot forums. I'll just say it has something to do with the word "woke" and one particular moderator individual ... could perhaps be said to have gone somewhat overboard in his reaction to a minimal provocation.
The README for this GitHub contains the same info as the official Godot repo [1], so it's not clear what this fork does differently or changes.
[1] https://github.com/godotengine/godot