My internal NVMe SSD shows as an SD card in the Steam interface. I'm not sure if this means it'll treat it any differently or if it's just a visual inconsistency. I'm not sure if it's just an incorrectly set flag or what. Oh, and this is on a desktop machine running the deck image (I also use it as a htpc, swaps back and forth).
(Also I take it my additional drives should be mounted in /var/mnt now?)