Storage reporting wrong values for SD card formatted as internal

hello.
I respect your (and any user’s) decision to treat their devices as they please.

So I paused and second guessed my idea to post it here.
But, you are reporting a bug and asking for similar experience, so I would just share the relevant guide here (it does contain links to issues with older FP devices)

and with the hope of not sounding patronising*, I do hope you backup your data

(*) this forum is a huge learning opportunity for me and I do not have much experience with SD cards so honestly I can only share the advice of others