The film 'Fate/stay night [Heaven's Feel] III. spring song' does not feature any identifiable LGBTQ+ characters or themes. Its narrative centers exclusively on heterosexual relationships and the supernatural conflict, resulting in no LGBTQ+ portrayal to evaluate.

The film 'Fate/stay night: Heaven's Feel III. Spring Song' does not include any identifiable transsexual characters or themes. Its narrative is centered on the conclusion of the Holy Grail War and the intertwined fates of its primary participants, with no elements related to transgender identity or experiences.

The film features powerful female characters like Sakura Matou, Rider, and Saber Alter. However, their combat encounters against male opponents either result in their defeat, or their victories are achieved through overwhelming supernatural abilities (superpowers) rather than direct physical skill, strength, or martial arts in a contested fight.

This film is a direct adaptation of the 'Heaven's Feel' route from the Fate/stay night visual novel. All characters, including the Heroic Spirits, maintain the genders established in their direct source material. No character canonically established as one gender in the visual novel is portrayed as a different gender in this film.

The film is an animated adaptation of a Japanese visual novel. All major characters, whether Japanese or based on historical/mythological figures, maintain their established racial depictions from the source material. There are no instances where a character's race was changed for the screen.