The WiFi module specifications include:
Wireless Standards: Supports 802.11a/b/g/n with dual-band (2.4GHz, 5GHz and 6GHz) capabilities.
Bluetooth: Low-power Bluetooth 5.0 support.
Videos on WiFi standards for 2.4GHz, 5GHz and 6GHz click links below.
First Video Difference between 2.4 and 5GHz
Second 6GHz Explained
