I have now used my iPhone 13 Pro Max for 6 months without using a case. And I must say that going caseless was absolutely the right decision to do. It is still in mint condition. It is exactly as brand new. The design makes it almost impossible to get scratches. The best build-quality ever in an iPhone. The only case-like thing I have been using is the Apple iPhone Leather Wallet with MagSafe. It has aslo helped a bit because it makes it so that the iPhone doesn’t touch the desk or table when laying it down. Also the performance has been awesome. Battery life is also incredibly good. And my eyes has got used to the PWM on the 120hz ProMotion display, so no problems with headaches.