just Logan said:
Weird to me is that if it is your turn you get to Act then react with no window for the other player out side of interrupts.
I believe the idea is that the active player gets the priority to "go first", so when you hit an Action window in the turn sequence, the active player gets to play and resolve their Action card ahead of the opponent.
So if you had an action window coming up in a phase, and were playing as Light Side and were the active player, you could always have the chance to play "You're My Only Hope" on your exhausted Leia ahead of the Dark Side who might play Force Lightning in an attempt to kill her.
Generally, when it comes to the Framework and Action windows, I am of the habit of narrating my turns, so it might sound like;
"I spend 2 resources to deploy Leia…actions? No? I spend 4 resources to deploy Han…" etc
This also ensures nobody tries to turbo through their turn before you have a chance to play an Action card in response to something they did. You're perfectly within your rights if someone just dropped a bunch of Units really fast, passed on Conflict and went straight to the Force Phase in the span of 2 seconds, to back that turn up so you could play that Force Choke when you wanted to between Units your opponent was deploying.
I don't think the spirit of the game is to try and speed run your turn so your opponent doesn't get a chance to play any cards against you, so if the active player narrates the turn as they go, there shouldn't be any issues where one player is trying to get an Action card in while the other tells them that it's too late, too bad, so sad, etc.