This is an alternate timeline of the monsterverse and has nothing to do with the original timeline.
It's just a story about not Godzilla himself but another gojira who is in this case, a female.
Monarch has given this new titan a name and here she is:
Her name is Faith and the reason why Monarch named her that is because she is the subject of an experiment that will change the fate of the Titanus Gojira family.
We will talk about her shortly after.
In a long story
This story takes place during the evens of Godzilla aftershock