I know this is a buzzword but Chainsaw man has pretty much No more Heroes/Scott Pilgrim tone in the manga, is wacky and colorful, it can be dumb but also have serious moments

Meanwhile the anime has pretentious written all over it
as other anon said the director went "oh Fujimoto is a westboo movie fan he surely like when i reference pulp fiction" when in reality Fujimoto talks and references movies like Spider-Man 2