Oversized weapons is a very Millennial focused art direction as most were teens and teens during the BFS and BFG age of cartoons, games, and anime of the mid 90s to mid 00s..Wayne Reynolds. Cover art 4E and Pathfinder.
Very cartoons and oversized weapons.
It's a very Xillennial-Millennial-Zillennial thing to have a normal sized slim guy wielding a sword, gun, or axe as tall or long as his height in your fantasy or sci-fi media.
That and dual wielders with longswords or meaty shiny handguns.
You can tell D&D isn't headed by people age 35-45. Someone would 100% ensure that Dual Wield Longswords and Oversized Greataxe/sword would be far and away the top DPR in 5e with Great Warbow Dual Wield Handcrossbow/pistol and Ultraheavy Crossbow being right behind as the range options.