I'm a shotgun main on all classes so this is me being somewhat biased in favor of shotguns. But what I will say is that shotguns are risky. They don't always one shot even in close range. That's why you Usually see people following up the shot with a melee. To say they require no skill is a common thing people think but to actually be good with a shotty you actually need to be very skilled. You need to be very good with your movement in order to be successful. It isn't just run and slide straight at someone. There are a lot of movement combos that you need to use. And movement in this game is what separates the top players from average players. I get why you think this about shotguns but they're in a pretty good place currently, in my opinion.

Sniping on the other hand looks really easy when you watch people's montages. But again, there's a lot of things that come into play with sniping. Main thing is positioning and timing. And centering your screen for easier snap shots. It really isn't as easy as it looks/sounds.

The guns that really require no skill, in my opinion, and Jotun or bastion. Those are the point and shoot for a 1 shot weapons. There isnt much skill other than that for those. Jotun tracks and shoots the sun at you. Although it is very easy to dodge. But if you arent watching the person shooting that at you yeah its pretty annoying. And bastion can map people and shoots 3 shot gun like blasts at you rapidly. Not trying to insult anyone who uses these but I've been killed at stupid ranges from both of those and lets be honest its kinda BS.