Are there alternate universe versions of superman that are antagonistic?

The only confirmed information about Superman in the provided evidence comes from the general description of the DC Universe franchise and the existence of the character itself. The Wikipedia excerpt explains that the DC Universe is a unified continuity that includes live‑action films, television, animation, and games, and it distinguishes the DC Elseworlds as adaptations that do not fit that continuity. However, the excerpt does not mention any alternate‑universe Superman characters, nor does it refer to any version of Superman that acts as an antagonist. Therefore, based on the verified evidence supplied, there is no documented instance of a Superman from another universe who serves as an adversary. If such a character exists in other media, it is not supported by the provided sources, and further verification would be required from additional reliable references.