I have had more than 10 new pickups in the last 12 years. Only two were kept longer than a year, the others were 4 to 11 months. Some did not have anything, some had bed liner, some had factory spray in liner. The pickups with no liner had paint scratched out of the bed. The ones with liners showed limited wear. The spray in liners showed no wear.
The factory spray does not prevent sliding like aftermarket spray liners.
However, if I order my own truck, it would have the factory spray liner and factory puck gooseneck/fifthwheel prep with a roll up bed cover.