Understanding WPA3 - Encryption and Protected Management Frames

You've probably head that when using WPA3, packet captures are nearly meaningless if taken over-the-air. You've also heard that Wi-Fi 6E and 7 both require WPA3. So, let's address the big questions: -What are Protected Management Frames? -Which frames are actually encrypted, which are signed, and whats the difference? -How can we get those sweet, sweet packet captures when we need them? -Do Protected Management Frames actually protect the network?