In my experience, type A personality has more to do with being able to earn a lot vs anything else. The cake is a lie.

I normally rate my gacha gaming about how much free currency they dole out. I think Etheria Restart is probably the most liberal of all the games I play. I can easily manage 1 10 pull a day or more most days. Nikke is probably second. Stay far away from Hoyo if you want zero money grubbing.