HOW TO INSTALL SCREEN PROTECTOR ON IPHONE 15 PRO MAX ZAGG InvisibleShield Glass XTR3, BLUE LIGHT?

HERE IS THE EXACT ONE FROM THIS VIDEO
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***Apple iPhone 15 Pro Max FineWoven Case with MagSafe - amzn.to/3uAkDuT
***ZAGG InvisibleShield Glass XTR3 - amzn.to/3HVAKq6
***Apple Thunderbolt 3 (USB-C) Cable (0.8m) - amzn.to/3HS2A6H
***Apple iPhone 15 Pro FineWoven Case with MagSafe - amzn.to/3OD2Ud6
***Belkin USB 4 Cable, 2.6ft (0.8m) - amzn.to/3ujDCtT
***Belemay Leather Case - amzn.to/3OIajYH
***Apple iPhone 15 Plus Silicone Case with MagSafe - amzn.to/42wweI5
***Belkin 20 Watt USB C Car Charger | with Fast Charging | for Apple iPhone 14 13 iPad Pro Samsung Galaxy S22 Ultra & More
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[@That_1_Outcast]

I’ve used the ZAGG XTR series since the iphone 13 lineup and currently use the XTR3 on my 15 pro max and the screen protectors have never let me down