The film does not portray or address the LGBTQ+ community or themes. Its narrative centers on Franklin Armstrong's experiences with racial diversity, friendship, and inclusion within the Peanuts universe, focusing on his challenges as an outsider due to frequent relocations.

Snoopy Presents: Welcome Home, Franklin centers on Franklin Armstrong's journey to find belonging and friendship within the Peanuts gang. The story explores themes of community and overcoming challenges through a Soap Box Derby race. There are no transsexual characters or related themes depicted in the film.

The movie does not contain any action or adventure elements.

All main characters in "Snoopy Presents: Welcome Home, Franklin," including Franklin, Charlie Brown, and Lucy, are portrayed with their established canonical genders from the original Peanuts comic strip. No character's on-screen gender differs from their source material.

The film accurately portrays Franklin Armstrong as Black, consistent with his historical depiction in the Peanuts comic strip. Other established characters also maintain their original racial portrayals, resulting in no instances of race swapping.