Does the Redmi Note 11S support AOD?

The AOD function (Always-On Display) is supported as long as your phone’s screen is an OLED screen. The Redmi Note 11S features a 90Hz FHD+ AMOLED screen.
AMOLED (Active-Matrix Organic Light-Emitting Diode) and OLED (Organic Light-Emitting Diode) are both display technologies. AMOLED is a specific type of OLED display that uses an active matrix to control pixel states, resulting in higher resolution, better performance, and greater efficiency for larger and more complex screens.
Note:
The AOD function can only be set to 10 seconds and cannot always display on some phone models.