Acemagix RX16 (AMD Ryzen 9 6900HX) : Fn keys

[GRTN]

I have just purchased a Acemagic RX16 laptop whose features are poorly documented .
I configured Acemagic RX16 in dual boot with both Ubuntu 24.04 and Windows 11 .

Below how Fn keys work on Acemagic RX16 (they are different from Acemagic AX15 and Acemagic AX16) :

FN+ESC()
FN+F1(quickly enter sleep state)
FN+F2(reduce brightness)
FN+F3(increase brightness)
FN+F4(turn off the display/turn on the display)
FN+F5(turn off the touchpad/turn on the touchpad)
FN+F6(mute speakers)
FN+F7(reduce speakers)
FN+F8(increase speakers)
FN+F9(turn on backlit keyboard/increase backlit brightness/turn off backlit keyboard)
FN+F10(print Screen)
FN+F11(configure second display)
FN+space bar()
FN+F12(turn on airplane mode)
FN+DELETE()

Fn+F10 , FN+F11 , Fn+F12 work only in Windows 11 , all other nine ones work fine both in Ubuntu 24.04 and Windows 11
Fn+F10 creates a snaphot of configured rectangle in directory .../Pictures/Screenshots , but it doesn't work on Ubuntu 24.04 ( Ubuntu 24.04 has different key shortcuts to get snapshots or videos from desktop , somewhat more powerful then Windows snipping tools )