Great first act. Dropped off to meh after that.
I'd have rather they edited it to show the 3 separate storylines up to the point of the defensive missile launch. Then go linear/simultaneous from there bouncing between the three of them.
I'm not mad about the ending. It's okay for a movie to make you think about something or feel something without a complete narrative arc.
Where it lost my engagement was in the repetition, with minimal story expansion.
At least they got one thing right, the FEMA DEI hire who, according to her character's coworker, hadn't even deserved the spot.....That made me laugh. To be honest there was no other reason to even have her in the movie.