

Yep, this is how I do it on my NAS, which is some RockPro64 board attached to WD Red spin drives. I have music, movies, game saves, documents, pics, etc. that equal around 1.5TB and I don’t seem to get excess scanning when “watch files” is turned on.
Are you using Steam Input Settings to map those dpad buttons? If so, try setting that back to default, then use AntiMicroX to map keyboard input to your dpad instead.