In the original accounts, he was usually invisible and worked by stealth. By definition, this would leave no trace, and its existence can be neither proved, not disproved.
The “modern” version of a “frankenstein” type creature who beats up goyim with brute force is reflective of the “haskalah”, and while reflected in the modern superhero genre (largely invented by frei Jews, probably based on non-frum Jews misunderstandings of the “golem”), has no real basis in Jewish tradition, and clearly never exist.