I couldn't retrieve direct reviews of My Big Fat Greek Wedding 3 from Quora, but I can share my own review of the film.
My Big Fat Greek Wedding 3 offers a nostalgic return to the Portokalos family, though it struggles to capture the charm of the first movie. Directed by Nia Vardalos, who also stars as Toula, the film follows the family on a trip to Greece to honor her father’s last wish. While the Greek setting is scenic and some family dynamics are heartwarming, the plot feels thin and lacks the freshness of the original. The humor is hit-or-miss, with moments that resonate but many that feel forced or overly familiar.
For fans of the series, it's a sweet, sentimental reunion, but as a standalone film, it may not have the lasting impact of the original. It largely depends on your attachment to the characters and the franchise.