Ron Howard probably deserves a medal for taking the reins on this. I suppose we’ll never see the footage shot by those other two guys.
Actually Ron Howard said in an interview (I think it was with Collider’s Frosty?) that they kept some of the Lord & Miller stuff, some things were combined with reshoot material, some scenes they did again. But yeah… we’ll never know for sure what they specifically shot. He might’ve also said that just to make them feel / look better.
In the trailer I remember seeing Qi’ra with a ponytail (during the Corellia chase) and in the final film she had polka hair. So I guess all the Lord & Miller material can be seen in some of the trailers?