Combat has always been a significant part of what makes Final Fantasy so enjoyable. Apart from what is usually considered its impeccable storytelling, the series relies on intense and exciting battles to draw players in for another opportunity to improve their characters' stats and abilities by gaining EXP and better gear. For the most part, the franchise has utilized classic turn-based mechanics in its combat, in which the player's team and their enemies take turns performing actions. However, the release of Final Fantasy XVI has suggested that the antiquated mechanics of turn-based combat may be worth leaving in the past.
Source：https://www.cbr.com/ff-turn-based-combat-revamp-vs-real-time-action/
