In the matter of those suspiciously similar Elden Ring animations found in the recently released post apocalyptic souls like Bleak Faith: Forsaken, it appears that sci-fi didn't steal from fantasy but was in possession of stolen goods.
Developer Archangel Studios have committed to replacing all stolen assets in their game.
Occasionally the sci-fi credential of upcoming games, films or series aren't completely clear until they release and one such is the recently released souls-like action roleplaying game Bleak Faith: Forsaken.
But it released and kind of bombed so our missing it seemed irrelevant until its developers were accused of stealing assets from last year's big hit, fantasy souls-like Elden Ring and earlier FromSoftware games.
Right now everyone is talking about fantasy roleplaying Souls-like Elden Ring, eg. nearing a million concurrent Steam users and being trash talked by other developers for breaking the mould and setting new standards.
It has to be tough for other developers. Games typically take five plus years to develop and releasing into a market with changed expectations and tastes is not ideal.