Contrary to published hours, Horseshoe Bend parking lot does open a little before sunrise, so you can get in for your pre-sunrise photos. Smoke and haze still ruined the view, but that's what dehaze filters are for?
Pleasant enough return back home, even got to explore Phoenix Sky Harbor terminal 4's pre-security food court, which might have actually been nice before COVID-19; now it's a shadow of its former self.