No. The official Superman comics mainly focus on his superhero deeds, his battles against villains, and his relationships in a more traditional heroic and family - friendly context, not on such inappropriate and uncanonical content.
In general, the superhero genre is more about action, adventure, and the exploration of good vs. evil. There are gay superhero characters, like Northstar in the X - Men universe. However, their stories tend to revolve around their identity, acceptance, and how they fit into the superhero community, not sexual stories.
In the comics, Frenchie's sexuality wasn't explicitly stated as gay. It might be open to interpretation depending on how you read the character's storylines and interactions.
In the mainstream comics, Venom's sexuality is not defined as gay. His character development is centered around battles and conflicts rather than his sexual orientation.
It depends on the specific comic and its storyline. Sometimes it might be explicitly shown or hinted at, while in others there might be no clear indication.