For example:
Google and Apple keep 30% of the profits from the developers. What makes these platforms less profitable for distribution. Yes, I agree that these ресурсы are very popular and the size of the profit from them will be higher than that of XARCADE, but advantageous platform conditions will be more interesting for developers. They will be able to sell their games at lower prices. And low prices will attract buyers.
Anyway, I think that spreading through more popular sites will be more beneficial for developers.
The creators of the platform still need to work out the advertising company of the project. To make it more famous. Then more users will be interested in it.