A search for "currency conversion charges" comes down to adding up costs. The price of moving money in and out of a casino is rarely one number. A fee can come from the operator, the payment method or the bank, and a currency conversion can hide inside an exchange rate that looks close to the market one. Laying the parts out before the first deposit gives the real cost of every payment.
Payment methods add costs of their own on top of anything the casino charges. Wallet providers often take a percentage when money is loaded or withdrawn to a bank, card issuers may book a casino payment as a cash advance, and crypto transfers pay a network fee set by traffic at the moment of sending. None of these appear in the casino's terms, so the method's own price list is the only place to see them in advance.
Operator fees usually attach to withdrawals. Some sites charge a flat amount for each payout, others a percentage, and many waive the fee for one or two withdrawals a month and charge for the rest. A few charge for withdrawing a deposit that was never played through, which is aimed at people using the casino to move money. The fee table in the payment terms lists each case, and it changes more often than the rest of the terms.
Wallet, card and crypto charges appear in the method's own price list, not in the casino terms, so that list is the only place to see them beforehand.
Some casinos charge an inactivity fee on accounts left untouched for months, slowly draining a forgotten balance.
Some charge a flat amount per payout, others a percentage, and the fee table in the payment terms lists each case.
Usually not, because a chargeback tends to close the account, freeze the balance and bring a debt collection claim; the dispute section of the terms gives the safer route.