The Xiaomi 15 Ultra does not support Anti flicker. The screen anti flicker function is designed to reduce screen flickering under low brightness levels. The function adjusts the display's brightness by varying the current supplied to the screen (DC dimming) rather than rapidly turning the backlight on and off (PWM). While this feature is beneficial for minimizing flicker caused by mismatched light source frequencies, the absence of anti flicker in the Xiaomi 15 Ultra does not significantly impact its overall performance. The device still offers excellent imaging capabilities and advanced features to ensure high-quality photos and videos under various conditions. You can achieve great results by utilizing other camera settings and optimizations available on the device.