Can you see it in any of your images? I know it’s visually obnoxious but often dust below the lens doesn’t actually translate to defects in the image. In which case it’s dealer’s choice whether you care enough to get it swapped. (Personally I would, but I will go to great lengths to feel like I’ve gotten value for money, even if it is only cosmetic)

I don’t know why anyone is surprised that it’s not the native app. I buy a MacBook because it’s great for media processing and creation, but I still use non native software to do that. The camera app is designed to function simply for the level of familiarity with cameras that ‘most’ people have. Heck, half of the people who complain about the lack of options probably wouldn’t know what to do with a more robust feature set.

Never experienced that. You’ve got connectivity issues.