Blurry document scans on iPhone 16 Pro

this is what the fellow was talking about, he's not talking about the camera he's talking about the document scanner not being able to focus

Please use the Notes App to scan documents.

Scan a document

1. Open Notes and select a note or create a new one.
2. Tap the Camera button , then tap Scan Documents .
3. Place your document in view of the camera.
4. If your device is in Auto mode, your document will automatically scan. ... 
5. Tap Save or add additional scans to the document.

How to scan documents on your iPhone or iPad - Apple Support

That's what he is originally referring to is the document scanner, not the camera app

me too, I think that's a hardware problem, what should I do ? maybe my next phone is samsung one =( disappointed