I'm too lazy to find it for you but on the Corning GG website they have a white paper on exactly this subject.
They're quite proud of the coating on GG3 and go through extensive testing, apparently rated for 20,000 lifetime wipes. The wipes they test with are denim material, simulating a rough wipe on clothing.
That being said some are claiming their coating is degrading already. Makes me think they must be using cleaning chemicals. Corning says to only use a dry cloth or some water only, which won't ever disinfect the screen.
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