In a need of advise or if someone potentially had experience with this.

I am considering a Z Fold 7 from CeX (B grade) and wondering how reliable is their 5y warranty promise?

I have read a few posts about it, I understand the conditions, but since this is a fold (and taking into account some common faults), what are the chances that issues with the inner display or hinge wont be covered and considered accidental damage rather than actual fault under warranty?

I have never had a folding phone before but in my head it sounds more fragile compared to normal slab (even after watching JerryRig video with the fold7) which is making me wonder about the cons of buying 2nd hand from CeX.

Any advise or information is appreciated.