Depositing over Lightning
When channel capacity becomes the limit
Lightning settles in seconds and avoids on-chain fees entirely, which makes it the correct rail for small, frequent deposits. Where an operator supports it, it is usually the quickest way to a playable balance in bitcoin.
The constraint is capacity. Larger payments are more likely to hit channel limits, and when they do the payment fails rather than arriving slowly, which is confusing the first time it happens.
Support is thin. Each casino profile lists the coins and networks the operator itself names, so check there, and in the cashier, before relying on Lightning.