The exchanges credited forked coins already. If you didn't have your funds in an exchange, but you do control the private keys of your current bitcoin address (If you had bitcoins in the address when the forks occurred) then you could claim your forked coins by either exporting the private keys and importing them to a compatible BCH/BTG wallet or simply use
Walleting.Services and they'll do it for you.
That would be good to know. As the BCH do the hardfork and it even splitted into two coins, the BSV and the old blockchain which is the BCH. However, I was seeing that cleints or consumers still wants the BCH version. This after the BCH market price had move faster in terms of its increase than BSV. But for OP's concern regarding with the hardfork of BCH, the exchanges had gone some maintenance and upgrades in the adaptation of BCH hard fork.