Your unpaid friend or a Unity game template is unlikely to be enough to compete with medium+ scope games

Can't forget animation or sound either. Someone needs to work on the actual game design too! Whose job is it for the marketing? Hope someone has video editing skills to show it off well. Who even did the market research at the start?

It's.. a lot. So normally you have to reallllyyy simplify and constrain what you're capable of

AI might change that. Not now of course but one day?