same thing worked for me. on iphone, ios 18 introduced a way to apply shades to everything, including app icon and notification counters. since i made the entire thing darker, i've stopped using instagram. i couldn't believe that such a small thing could do wonders. probably the same thing can be achieved by disabling the notification counter, but i think it's better to have it when you want to look for it, but make it not pop out into your eyes.