At least it’s not rusting.
Take it to a decent body shop for a respray.
Yeah, it’s a 2018 10th gen.
Might be time to visit Earl Scheib.
Sand it down and spray it yourself.
Honda extended the warranty for paint on some 8th and early 9th gens. If enough people complain, maybe they’ll do something again. I thought they had fixed the issue though. My 2013 Si sits in the sun a lot and the paint still looks great. Call Honda and ask if they’ll do anything, but if not, you’ll probably have to repaint at least the roof, trunk, hood, and fenders.