@StrawberryPinkOctopi Fgod means Forced God of Destruction, originally by Harrish6 and just ended up becoming an AU all on it's own.
It's where Error was taken away from his AU by a Deity named Fate and was forced to become the Destroyer of AUs to maintain the balance because too much AUs would cause the destruction of the Multiverse, as opposed to Canon where he simply just destroys because he wants to.
Forced God of Destruction's overall storyline is Error gets kidnapped by some Deity, he's depressed because of it because the Multiverse (asides from Nightmare's gang, but some stories makes them betray Error too) is against Error and then Ink is a foolish and dumb creator who doesn't know that there's a balance, so he keeps creating and creating and resents Error cuz of it.
Then an ambush happens and Error falls into the VOID where a Deity named/called Destiny then saves him and transports him to another Multiverse where he can heal.
This is p much the general gist of it ngl