I replaced the inner screen myself on both the Fold3 and Fold4. Bought a Milomdoi kit for it on Amazon. $20. Easy to install both times. Looks like new. Samsung took the Fold3 as a trade in for the 4.
Galaxy Fold
Discuss device issues, tips and tricks for your all your Galaxy Fold Devices.
I removed mine from my Fold 3 after it started peeling after ~ one year of use. I used it for another year without issues; the screen felt more like plastic without a protector. I peeled mine off slowly, starting from a corner and applying as little force as possible. I think most people don't have any issues with removing it, but you never know. I've seen a post or two from people who broke theirs doing it. If I had a valid warranty, I would have replaced it at a Samsung store.
I keep hearing lots of mixed things about screen protectors and warranty and insurance. This it's nice hearing that you can replace it yourself with a good one. I do have some that came in a kit for the fold 5. This is my first foldable. I ordered them primarily for the outer screen protector. But will keep them for the day I will inevitably need them. My mother also got the fold 5 after she saw mine. Traded in her note 20 ultra to Verizon for $1000 trade in.