Hi @soulintention , It could be a backlight issue or the panel. However as all picture tests have failed best to contact Samsung for advice. Contact details here https://www.samsung.com/uk/support/contact/
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .
