Difference between turning off wifi and airplane mode?
Airplane mode disables all wireless transmission functions, including Wi-Fi, but also Bluetooth and others!
It should be noted that in airplane mode there is no incoming or outgoing Wi-Fi or mobile signal. Airplane mode is a feature of mobile computers and devices that turns off all types of radio chips that could interfere with an aircraft's communications and navigation systems.
When airplane mode is activated, Windows 10, ... disables the Wi-Fi network card, Bluetooth and any mobile data connections (3G, 4G, 5G, LTE, ...) that you may have on your device. If your Windows laptop or tablet has wireless projection capabilities, Airplane mode will disable them .
You should enable airplane mode when boarding airplanes. After takeoff, you can turn on the WiFi or Bluetooth individually if you need to use them on the plane. When Airplane mode is active, Windows 10 will display an airplane icon like the one below in the taskbar.