The Curt Front Mount Trailer Hitch Receiver - Custom Fit - 2" # C31088 you were looking at is confirmed to fit your 2019 Chevrolet Silverado 1500 LT 4WD with the 5.3L V8.
You are correct that you will need to trim the fascia to allow the hitch to be installed as shown in the included cutout from the instruction manual.
I included a link to the written instructions of the # C31088 for you to take a look at. view full answer...