What does @media (orientation: landscape) return on pc?

I'm trying to generate rules for cases where "orientation" is not available, as a browser on pc, but I can not make this rule work,

I want the three cases to be considered, "orientation: portrait", "orientation: landscape" and "orientation: undefined" ??

try a rule like this, but without results.

@media(min-width: 1px) and not ((orientation:portrait) , (orientation:landscape)) {}