Dust inside the iPhone 11 Pro Max rear camera lens

Hi! I'm new to iPhones and had recently bought an iPhone 11 Pro Max. To be exact, I've exchanged a few already due to one blaring issue I have: dust UNDER the camera glass. It cannot be cleaned on surface meaning it had to be caught inside during manufacturing.

I thought I had received a clean copy but a week later to my horror I turn the camera at angle to find a very small dust spec under the main rear camera lens. You'd probably have to look with sharpness of a magnifying glass to catch it, but it's there. I look at my old phones and I notice a lack of dust under the lens. So what's the deal? Where is the quality control and I'm out of chances trying to replace it once again.

Being a photographer, I'm very particular of dust and buying this phone specifically for shots when I can. In reality, it's not the biggest deal, but I strive for cleanliness in aesthetics regardless.

Any action you can suggest I can do would be appreciated.