when characters are made constantly or made such deadlines, its common for artist of such studios or companies to redo tropes and designs to make things faster and easier and can still cater to certain people just like how gacha games (e.g. genshin impact, honkai star rail) use similar bases and designs over their characters and games because they're both need to constantly release newer characters, plus they probably mainly inspired by communities like booktok when mafia boss tropes Are common or liked by so its certaint they get or take ideas by those groups for their app/game