Hello @Barry,
your thesis is a blanket statement that isn’t generally valid, because there’re such and such USB sticks.
This is the same as saying that inferior or superior flash chips are installed in USB flash drives. Accordingly, the durability is different and especially the read and write speeds can differ significantly from each other.
Yes, my external SSD 128GB with exFAT file system and USB-C OTG adapter to USB 3.1 was immediately recognized as mobile storage by an iodéOS 2.5 system and my file manager had access as well as other apps.