Even if a Centralised exchange supports such chain so far it’s a wrong selection there could still be a very little to no chance of retrieving it..
They can actually retrieve it if possible but they won’t refund you if it’s already in their terms unless they have other recovery process that can be taken .. the best measure is always to prevent it .
Confirm again and again if needed, it won’t take minutes compared to a recovery process that will take months or forever.
I can confirm that several exchange outright refuse funds retrieval doesn't matter how much you try. Some exchange that I knew allow for funds retrieval with self-service or through support contacting is
Binance and
Bybit.
They have mechanism that allow user to recover and make sure that no money lost, worse exchange with lower rank don't allow that easily and even might have a ToS that state any money sent to the wrong address would be unretrievable and lost forever.
The thing is some lower ranked exchange deliberately making deposit address for each network different for this to happen and to not offer fund retrieval method was part of their strategy. Which is why doesn't matter what you do, they will always refuse retrieval of fund. I got trapped once with the different address different network scheme and want to share my experience.
Exchanges can support that chain, and if so they will possibly support users. If they don't support that chain, the answer will be almost No, that means you will lose your coins/ tokens.
Exchanges can charge very expensive fee in such support situations too.
Exchanges can support that chain and still make things a living hell for the user. Let me use a local exchange for example remittance. They support BSC, ETH, Polygon, and almost all networks with MEW wallet support, but each deposit on each network makes use of a different address. For example, if you are sending USDT on ETH, you have a different designated address for it, same with other networks, and if you make the mistake of sending to the assigned BSC address, the fund on ETH network, you pass through hell on support before they can credit it manually, and it depends on the amount.
+1 on this, I've experienced using an exchange that use different designated address for different network, it was hell. You need to constantly check whether it's the right address or not. One small mistake, boom your money gone.