Yes, all of that is correct as far as it goes, and isn't in contradiction with what I said. You'll notice that the EPA page you linked https://www.epa.gov/hw/end-life-solar-panels-regulations-and... is mostly about an effort to reclassify solar panels as non-hazardous waste, which is specifically because of what I said. See for example https://www.sciencedirect.com/science/article/pii/S030147972... "About 8% of traditional PV samples exceed the 5 mg/L limit for Pb in TCLP tests. No modern PV samples exceed the 5 mg/L limit for Pb in TCLP tests."

But TCLP is already an extremely rigorous test, far worse than nearly all actual landfills, intentionally. It uses acetic acid, one of the very few acids that forms a soluble salt of lead, and none of the anions present in normal soils that normally immobilize lead, such as carbonate, phosphate, sulfate (!), and chloride.

And air pollution from pyrometallurgical recycling of the kilogram quantities of lead from car batteries is totally irrelevant to the safe containment of the milligram quantities of lead from (probably hydrometallurgical) recycling of solar panels. I am really struggling to imagine how your understanding of the issue could be so shallow that you thought it might be relevant.

Scrap lead is like US$1/kg. Nobody is going to recycle solar panels for that.