imnotwhoyouthinkiam
simple question why it should be a problem ? do you think they are going to fail you because you have a light beard ??? come on, it's not the USA it's Qatar.
I fly and I have a beard and I won't shave it to make people happy and like Capt Krunch told many people with beard even in Qatar Arways this week I saw a captain on the 340-600 with a light beard as it doesn't interfere with the oxygen mask you are fine.
All the best for your interview.