I know thats sad to hear, but it isn’t really a 48MP camera. The camera has a so-called quad-bayer sensor that combines 4 pixes into one whicht results in a 12MP output.
Take a look here:
Have you had those issues with normal phone calls or with messaging apps like Signal/WhatsApp?
Similar issues with messaging apps were mentioned here before and @lklaus opened an issue at GitLab