I think all casinos convert cryptocurrencies into stablecoins or fiat immediately after deposit. At least those whose base currency is USD or EUR or some other fiat currency. Those whose primary currency is Bitcoin should keep their reserves also in Bitcoin so that the exchange rate change does not affect their business either. 1 BTC = 1 BTC.
Hi KennyR, no it doesn't work like that. Casinos start with capital , and that capital whether in crypto or not has a fiat value at that time in their ledgers .