I still haven't got the Raspberry PI I wanted to get started with lightning.
Backordered.
I suspect there simply aren't any to be had right now.
I think this may be due to the current global semiconductor shortage. I'm also waiting for an ARM MCU board to be available for a project at work, and was told lead time is currently January 2023. It's in times like this when you realise just how important those little chips are...