Toyota has always had thin paint, my 2018 Pro has at least a dozen or more chips on the leading edge of the hood in just 10 months of use. I gave up almost immediately on attempting to combat it, sadly it is what it is and you have the enviro nazis to thank for it. You're kidding yourself if you think Toyota is going to do anything for you, that's simply wear and tear, the paint warranty only covers defects and corrosion. I say let go and embrace the chips, dings, and scratches and you'll find more joy in using it.
Here is what my paint looks like after a single trip to Big Bend (Oso Loop). It sucked the first day, but I am over it now lol.