Lady Gaga has received glowing reviews for her portrayal of Harleen "Lee" Quinzel in *Joker: Folie à Deux*. Critics lauded her nuanced performance opposite Joaquin Phoenix, who reprises his role as the Joker. "Gaga is smartly low-key," Pete Hammond from *Deadline* noted, highlighting her believable connection with Phoenix's character. *The Hollywood Reporter* praised her as a "compelling live-wire presence" balancing obsession and affection. However, some critics felt that Gaga was underutilized in the film. *Variety's* Owen Gleiberman remarked that while she has a "lovely unforced presence," her role was limited. David Erlich from *IndieWire* echoed this, criticizing director Todd Phillips for not fully showcasing her talents, especially in musical scenes. Despite these reservations, Gaga’s performance still captivated audiences, cementing her status as a powerful force on screen.