I haven’t been in the position yet, haven’t played with the in flight failures or run low on fuel but do you get ATC dialogue options to declare an emergency and expedite an immediate landing type thing?

Declaring an emergency

GONEFLYING1234 January 11, 2021, 3:35pm 3

Unfortunatey not (yet)
Even squaking 7700 is ignored
Maybe, vatsim does, but I’m not sure.