Can anyone tell me which LEGO set this is? My son was gifted some LEGO bags but with no instructions and I can’t find them on the internet.  It’s bag #4 and the only other number I can find in the bag is 135149. Any help would be greatly appreciated.
Y-Wing Starfighter, set 75172 from 2017

It comes in five bags.

Building instructions at lego.com