I agree with the dress code. This would not be permitted at my work place. It can be as big as they want it, but I think it should be trim and proper at least.
Did I mention, I too have a “light beard”. My wife likes the just growing in look. ;o)
I had a full beard when I was a Hippie. Then I cut most of it off and had the most awesome Fu Manchu! Now, just a mustache. Funny, but I think my friend’s pets recognize me because of the mustache!