In many Western nations bury them is now forbidden. Most are burnt in cement kilns (producing useful heat).

In France, 95% of the mass of a wind turbine must be recycled (legal obligation), the concrete base is not spared and the law requires wind farm operators to lock (upfront) a financial guarantee (deposit).

Recyclable blades are appearing (RecyclableBlade, ZEBRA, PECAN...) and even existing ones are being considered: https://www.offshorewind.biz/2023/02/08/newly-discovered-che...

According to EDF (multinational electric utility company owned by the government of France, the giant in France, owning and operating all nuke plants) 94% of a solar panel is recyclable. In France most of it is already recycled.