Screen flickering iphone 13 pro max

I bought my iphone 13 pro max this year’s February. And around july i started having problems with my display.

my screen started flashing black screens like flickering every time i use my phone. There was no way to find a pattern to what causes it.

gave it twice to the service center and they keep saying they can’t replicate the issue but when i get my iphone from them is happens.

one thing i noticed is that they do there test on my device with a fresh reset so no apps installed. That might be the reason they can’t replicate the issue. But when i get it back and install the apps i need it happens. My screen flickers.

anyone experiencing the same issue?