My rear camera glass shattered
I was trying to take a photo and it wouldn’t become clear so I look at the rear camera and see the glass over the lens is basically gone. Shattered completely. Are there parts and a guide available for me to fix it?
I recommend you *NOT* void your warranty and take it into an Apple store and pay the service fee to repair it there. It will still be under warranty and still have an IP68 protection due to the adhesives they use which will be reliable rather than you trying to repair this.
If you insist on repairing it yourself, iPhone 12 Pro Max Teardown will help you.