Some GNSS questions

I run 3.8.5 software for VTOL quad-plane and I want to know some things because in the manual does not say much:

  • what will happen if GPS is jammed while in the air in forward flight?
  • what will happen if GPS hardware fails while in the air in forward flight?

I must point out that at the moment there is not an option to go to newer software.
I’ll be grateful for any useful information.

Kind regards, Robert.