I think 樂s 21 fe and s 23 series 樂 is the most prone to green n pink line issue phones ..i wish both these phones should be treated as special cases for free screen replacement even after three years of purchase
One solution for s 23 ultra regarding update related issues..don't update bigger update via fota update..update your phone from service centre manually via wire through Samsung system..most safest way to update older phones..skip regular monthly patc...