Based on the pictures, I don’t see anything to be concerned about. Watch the spots and report back if they get bigger, change, or if more show up.
Sometimes blemishes like this happen without an obvious cause, minor physical damage, random lone sucking insect, but most of the time it’s just a cosmetic issue. The pattern looks wrong for sunburn. There’s a type of cell collapse (mesophilic ? don’t remember the spelling) that can happen if cold water sits on leaves, but I’m not sure your plant damage matches.
For now, don’t do anything drastic. No treatments needed.
As for repotting, when was it last repotted and how does the medium look?
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