Following Rian Johnson's divisive Star Wars: The Last Jedi, Star Wars: The Rise of Skywalker missed the perfect opportunity to explain the former film's Holdo Maneuver. In The Last Jedi, the film's second act culminates in one of Star Wars' most visibly striking sequences. After Laura Dern's Amilyn Holdo began leading the Resistance fleet away from the pursuing First Order, the vice-admiral concocted a plan that would buy the fleeing Resistance members time to reach safety on the planet of Crait. The plan involved turning the Resistance's flagship towards the First Order fleet and traveling at light-speed through the flotilla.
https://screenrant.com/rise-skywalker-explain-last-jedi-holdo-maneuver-missed-opportunity/