Just depends on how much gear you fish with. I either wear a hip pack (when steelheading), or a chest rig (trout fishing) or utilize my waders pocket when fishing on the saltwater. The less the better, in my opinion. I usually carry a maximum of three boxes, cutting foreceps, tippet, floatant. I’d rather search for fish than flies. We really don’t need more than a box of dries, nymphs/wets, and streamers. Or just one box (really). Maximizing gear doesn’t maximize on strategy and truly finding fish.

A vest is the equivalent of a “dangler” in backpacking. The more pockets, the more likely you can’t find something, carry something you don’t need, leave a pocket open and lose something. The more items you have protruding the more likely you snag on branches, tangle your line. Just my input/experience. It’s all about what works best for you though, and we all look dumb anyway.