Yes, the Redmi Note 14 Pro+ 5G supports multi-network parallel acceleration. And the Redmi Note 14 Pro+ 5G supports opening Wi-Fi and hotspots at the same time.
For your reference, here is more information about multi-network parallel acceleration:
Multi-Network Parallel Acceleration is a technology designed to enhance the internet connectivity experience by utilizing multiple networks simultaneously for faster and more stable data transmission;
By using both Wi-Fi and mobile data at the same time, the phone can achieve faster download and upload speeds, especially for tasks like streaming, gaming, or large file transfers;
Opening Wi-Fi and Hotspot at the same time allows your phone to stay connected to a Wi-Fi network while also using the phone as a mobile hotspot to share data with other devices.