Based on available information, Rob N Roll does not appear to feature LGBTQ+ characters or themes. Reviews and plot summaries focus on crime, friendship, and family dynamics, indicating an absence of explicit LGBTQ+ representation. Therefore, the film's net impact on LGBTQ+ portrayal is N/A.

The film features female characters in significant law enforcement and supportive capacities, such as Ginger, a veteran policewoman. However, the narrative does not prominently feature these characters as physical combatants, nor does it emphasize scenes where female characters achieve victory over male opponents in close-quarters physical combat.

The provided information explicitly states that "Rob N Roll" does not feature gender swapping or significant gender role reversals. The film's characters, including male protagonists and female supporting roles, maintain traditional gender roles with no indication of pre-established characters being portrayed as a different gender.

"Rob N Roll" is a Hong Kong crime drama with a predominantly Chinese cast, set in Hong Kong. The provided information explicitly states there is no indication of race swapping, and the characters are rooted in local cultural contexts, not adapted from sources with differing racial portrayals.