Hey there! Congrats on your ownership.... great device, IMHO.
I've owned a Fold since #2, and for what it's worth, I've owned "full" coverage cases, and aside from the bulk, they were fine. Eventually, I stopped worrying about the device and enjoyed minimalist cases.
I've used Samsung cases on them, and now am enjoying their kick stand case with the added Spen snap on from the last iteration, as it fits!
Dropped, splashed, sat on, used outside in all weather situations, and it's in my back pocket amongst lint when moving about.
No problems as of yet with the 5, and none with the past devices either.
If you were a Note user, and used the Spen often, get Samsung's Spen case, no bulk to speak of, and you have a stylus on hand!
Good luck... peace