The camera hump is super vulnerable. Easy to crack/break and doesn’t take a drop or fall to crack the lens glass. Even putting the max down (case-less) on a surface, table etc, with any unintentional force has potential to crack that glass.
‘If it all works okay you should consider using a camera lens protector. I have one on mine and while not super strong looking it does appear to offer some impact protection as well as preventing scratches on the lens glass. Also a case with raised lip in the right places would help & even prevent further damage to your already cracked glass
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