If your game is not on Steam (or big consoles) it doesn't exist. Platforms like Itch are only useful for part-time solo developers who trying to earn their $100 or $10 for ramen. Can be good marketing for solo developers too, but you only make money when release on "real" platform.

Gamedev is a hit industry. Even of released games 90% never make back the investments. Then 1% hits make 90% of money.

And situation is as bad for $3,000,000 game studio as it's for one like mine that makes $300,000 games.