Why is my iPhone camera quality bad
The front camera is very different from my iPhone 6 and it reminds me of a Samsung
Which iPhone are you talking about? Is there something covering the lens? See if there is a software update. If not, it could be a hardware issue. I would recommend setting up an appointment at the Apple Genius Bar. They will be able to determine what the issue is here.
Setup an appointment here> Genius Bar Reservation and Apple Support Options - Apple