Windmill blades are afaik way worse than solar panels. And again, as its capitalist, focussing on efficiency, price or even (who would expect?) planned obsolescence, these products may not be as repairable as possible.

For example, give up 2% efficiency but have the solar panel parts easily seperateable. Have every part modular, they may be bigger and heavier, but allow a circular economy.

It's bad there is not better recycling for some parts as of now, but there are plenty of companies actively working on new techniques regarding that. Short article on it here.

It's also not nuclear trash, so you can dispose of it way easier and cheaper.