How fast is Beamforming Feedback Information growing?

Beamforming Feedback Information (BFI) refers to data exchanged in wireless communication systems like Wi-Fi (IEEE 802.11ac/ax) and cellular networks (5G, LTE) to optimize signal transmission. It's a compressed representation of channel state information that a receiver sends to a transmitter, enabling the transmitter to focus (beamform) its radio signals directly towards the receiving device. This improves signal strength, coverage, and data rates, leading to more efficient and reliable wireless connections. BFI is a trending concept, especially for applications beyond communication such as Wi-Fi sensing, though its clear-text nature raises security concerns.