Having to cycle through 2 empty slots is a lot worse, then going to inventory and remove your equipped weapon for your screenshot. But let’s not compare who is the bigger victim. What about having an option to disable empty weapon slots, so we don’t have to cycle through them unless we want to?
Sometimes you play frost + physical to shatter, it’s annoying having the 3rd empty slot to cycle through each time you want to shatter an enemy, far more often than you take a screenshot.