what happens if crypto price drops while your money is in a casino?

so i keep thinking about how volatile crypto can be and how that plays out once your balance is sitting in a casino account. like, let’s say i deposit some eth, play for a bit, and then decide to leave the rest in there instead of pulling it back to my wallet. if eth crashes while my balance is just sitting idle, do i just eat that loss when i finally withdraw? or are there any places that “lock” your value at the time of deposit? i’ve mostly stuck to fiat for poker, but i’m getting more curious about playing with crypto and want to understand the risk here. anyone else wrestle with this?