Due to the complete absence of plot summaries, character details, or any thematic information for 'Sauna, 2025', it is not possible to determine if LGBTQ+ characters or themes are present, let alone evaluate their portrayal. Therefore, an accurate assessment of the film's net impact on LGBTQ+ representation cannot be made.

Currently, there is not enough information available to assess the film's portrayal of transsexual characters or themes. Without plot details or character descriptions, it is impossible to determine if such depictions exist or their nature, thus no supporting examples can be provided.

The movie does not contain any action or adventure elements.

No source material or prior iterations are provided for 'Sauna, 2025' to establish canonical character genders. Therefore, it is not possible to determine if any character has undergone a gender swap from a previously established version.

There is no available information regarding the source material, character names, or established racial baselines for 'Sauna, 2025'. Without this context, it is impossible to determine if any character has undergone a race swap according to the provided definition.