On my old phone I had an issue with the proximity sensor and front facing camera. This led me to holding my phone backwards to take photos and being unable to hang up phone calls.
I think I put up with this for a year and a half.
I did end up figuring out the issue with the proximity sensor but opening up my phone to reconnect the camera module was too much effort for me.
Lol at my work we use a machine with a dead line of pixels that are yellow. It rarely ever affects the usability of the machine so there’s no point in getting another.