Can the IGPU be turned off in g15?

Can the igpu be switched to give the 3060/3070 the full potential in the g15 laptops? And is that mod available in armoury crate? I am being cautious since my g15 is arriving in few days . As g15 don’t have mux switch , ive seen reviews where the gpu can be used to the full potential when connected to external monitor only unlike other laps like legion .