If you want to protect your Quest lenses from scratches, I would highly recommend the VR Lens Lab Oculus Quest lens inserts. I got the non-prescription lenses which act like a lens
Oculus Quest Prescription Lenses – vr-rock
My oculus quest 2 lenses somehow got smudges over them. How can I remove them? Using a microfiber cloth only seems to spread them. : r/OculusQuest
It's Easy To Mod Your Oculus VR Headset With Prescription Lenses | Hackaday