A better way to determine interest and engagement for a movie trailer is likes rather than views. Because movie trailers often play as ads, that inflates viewership and makes it hard to determine if there was an organic interest to check the film out or not. Likes also aren't a perfect indicator, but you still have to manually click on something.
And between the two House of Gucci has hit 17K likes, while Flag Day has...634 likes. And for a more active comparison, Respect is at 31K likes with its mid-May trailer, while The Last Duel is at 26K within the span of 10 days. Gucci trailer's only been up for 13 hours, so that seems solid enough.