XS MAX front camera issue

My XS Max front camera is showing random vertical lines whenever in use But faceID working fine. Tried all troubleshooting tips and tricks available in community chats but nothing improved. Have seen queries related to this issue with different iPhone models since 2013 but no solution till today addressed by anyone neither any user nor company. Checked with authorised service centre they said there is no solution need to change phone .. checked with other service centres they said if front camera gets changed Then faceID will stop working because they dont hv required components to link Face ID and camera... requesting APPLE to please share solution for this recurring problem in various models. We buy APPLE products cuz we trust them looking forward for solution