Passive income is income from capital (dividends, rental payments, etc.).
This is like money working for us.
Passive income is income that a person receives without taking active actions. A person does not work, but there is income. Crypto gambling cannot be a source of passive income.
Crypto gambling can be a source of passive income if we tap one of the options it offers which is the affiliate system where we can earn from our referrals' gambling activities.
Gambling is usually based on luck (playing with fate).
I can say it is more on chance and probability, and skill in skill-based gambling games.
In my opinion, gambling should not be considered as a source of income, especially passive income.
I think otherwise, I believe with enough knowledge and skills,. playing on skill based gambling games can earn us a fortune.
In short, gambling game can be a sort of passive and active income depending on which option we choose to participate.