I get a lot of weird graphical corruptions in menu and on the splash screen. In-game the problem goes away completely.

In the menu, the corruption happens for a split second every few seconds and usually is only slightly visible like on the third screenshot.

The splashscreen sometimes gets corrupted, sometimes not, but if it is corrupted, it'll stay corrupted until the menu is loaded (an example of a rather extremely corrupted splashscreen is on the attached file s1.png).

The phone I used is a Oneplus 5.