According to Oscar Isaac, filming on Episode IX has been loser, and more improvisational than the last movies. I do find it a little odd to hear they are taking that kind of approach with this one, after they fired the original directors of Solo because they didn't like their more improvisational style.
All I can think is that Abrams must still be keeping things a more reigned in than Lord and Miller did on Solo.
Probably that last part, yeah. There's a difference between a bit loser, and the approach that Lord and Miller had.