Are the reshoots as obvious as they were for the prequels?
Nowhere near as obvious, thankfully. Episodes 7 and 9 (directed by JJ Abrams, the guy who just did that Star Trek reboot) have a fair amount of reshoots, but they blend pretty well and don’t draw too much attention to themselves. Meanwhile, Episode 8 (directed by current nobody Rian Johnson) had a much cleaner production, requiring little-to-no reshot footage.