I've seen a few threads from people experiencing issues with the factory fitted screen protector on their Fold 3.
Mine is fine ( touch wood )
Some experiencing the same customer journey your having when enquiring on having this replaced.
It appears the phone is factory reset as part of any process when the phone is sent in.
Why this would need to be carried out for a fitting of a plastic screen protector on the Fold 3 I'm not sure.
If and when mine fails I plan just to carefully peel it off.
I'll then decide to either use the phone then as is or I'll purchase either a glass option or film option from Whitestone Dome.
There are other options available that are sold too.
YouTube shows reviews and tutorials on how this is fitted.
I totally understand and appreciate you want to go the route you are and respect this. The above is just my personal choice option.
I wish you all the best.
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help.