the challenge is not run the marathon mounted in a harley davidson, the real challenge is make the 40 km running with your legs and sweating the tshirt
If you create a game for your own fun of creating a game and maybe learning new skills, by all means, go ahead, run a marathon. It is a challenge you made for yourself. Your "game" is making the game.
But if you create a game to tell a story, maybe hope of makeing a game that other people will like to play, what use for the player will it be, if you spend energy to run a marathon? Will the game get any better by doing it the hard way? Will your story telling techniques improve by this? Will your art get better? Will you chose better music, or even make some?
Making a game is not the same as being able to code an app. You need parts of one to do the other. But high skill in coding does not equate high skill in game making.
If this were a rpg, your skills might be Coding, Art, Story. You propose to max Coding, but for a good game you still need Story and Art, and Story is most important for a visual novel, followed by Art.