Yes, the Redmi Note 14 Pro+ 5G supports the Wi-Fi Display.
For your reference, here is more information about the Wi-Fi Display:
1. Wi-Fi Display is a feature that allows you to wirelessly project or cast the screen of your smartphone or tablet to a compatible display (like a TV, monitor, or projector) over a Wi-Fi network;
2. With Wi-Fi Display, you can mirror the screen of your smartphone to a TV or other large screen without the need for cables, HDMI adapters, or physical connections;
3. It has low latency, making it great for real-time applications like gaming or presentations. It allows for smoother, more responsive screen mirroring, which is important for activities that require interaction, like gaming.