It’s all subjective, v8’s sound great with a good exhaust. The PO for my Harley put a beautiful set and curved dual pipes on it and removed the baffles. Some folks absolutely love the sound…. I can’t stand it. But it’s still on there for awhile because a new exhaust is stupid expensive for it.
My Jeep has stock exhaust and it’ll stay that way. A straight 6 can sound amazing with an exhaust, but I’ve not heard a Jeep six that sounds good with an exhaust.
But again, it’s all subjective. just don’t be loud just to be loud. Then you’re just annoying.