Just a shower thought since usb flash drives seem to be over complicated for what they are compared to what fits on a sliver of micro sd plastic. The pcb isn’t just usb controller bits right? Doesn’t seem to add up.
Anyways this is what I’ve found, small writes seem to destroy nand much faster than writing as pages, but I guess the question is which flash drives write in which modes and how could we ever find out.
I wonder if on average usb flash drives have better controllers than sd cards.