I'm fairly certain that didn't come from the iPhone 13 itself; I just checked my brother's near new 13 Pro Max (which I think is the same as the non-Max variant), and the mesh looks identical to the close up of the iPhone you included in your photo. Perhaps it came from something else (case/screen protector) as other's have suggested.
joseph-parsons t1_j15wzz4 wrote
Reply to This mesh thing fell out of my iPhone 13 Pro. Is it a big deal ? Can it be fixed? Do I need it? Thanks. by IranOutOfLebanon
I'm fairly certain that didn't come from the iPhone 13 itself; I just checked my brother's near new 13 Pro Max (which I think is the same as the non-Max variant), and the mesh looks identical to the close up of the iPhone you included in your photo. Perhaps it came from something else (case/screen protector) as other's have suggested.