For Godzilla’s return, the King of the Monsters was given a radically new origin story that deviates from the previously established origin of him being mutated by the hydrogen bomb: in Godzilla, Godzilla is explained by Monarch to be an ancient, radiovorous apex predator that has existed for millions of years, existing at least as early as the Pliocene period.
https://godzilla.fandom.com/wiki/Godzilla_(MonsterVerse)#Origins
Nuh Uh.
Yeah but if he wanted he could have gotten something way more exotic, like being filled with spiders.