Flying over France, where the boundaries are often miles apart, if VHF1 fails, then my only cue could perhaps be when the pleasant Paris controllers contact me on VHF2 Guard. So yes, I do have a general awareness of crossing FIRs and when I should expect a handover, but what about in between?
I think an unknown radio failure is slightly different than knowingly running out of radio range and taking no action yourself
As you are so situationally aware, wouldn't it be better when you are at the 'expected point' to give a call to say you are changing frequency? Surely you don't leave everything for ATC to do for you
Better to have dialled up an ATCU you are flying towards, than one you are out of range of and flying away from
