One more tit-bit of info: eMMC flash memory does have wear leveling, so if you can find a cheap eMMC-to-usb adaptor, that might be a good alternative to flash sticks.
On the other hand, why not buy an M.2 SSD and a usb adaptor? I see a WD Green 128GB M.2 SSD for AU$30 in a local store, and an adaptor for AU$12 on aliexpress.
https://www.austin.net.au/western-digit ... -mb-s.html
...was just reading about WD Blue versus Green. They state the Green has lower lifetime, don't recommend.