There is no point in carrying a handgun if it is not functional, as in loaded. Safe carry practices do not include an empty chamber unless you are carrying hammer down on an old style six-shooter that can discharge from a blow to the hammer. In that case it’s a five-shooter with an empty chamber under the hammer.
If you are going to carry, carry properly in a suitable holster.
Further, this only proves the reliability of a Glock. It fires when the trigger is depressed.
My old style .44 Navy single action lets me drop the hammer between loaded chambers, so I get most of the benefit of an empty chamber, and still get that one extra round: A 20% gain for that oh-so-common situation in my pastoral existance wherein I miss the bad guy the first 5 times.
And the added round, for a firearm stoked with black powder makes the defensive smoke cloud even thicker.