As I can remember exchanges that implemented lightning, they took it out because nobody was using it. And I don't recall any exchange using lightning. I don't consider Cash App or strike an exchange.
Discussion
How are they not an exchange they KYC you and exchange bitcoin for fiat??
Because they btc only. Im looking for an actual exchange with the crypto market that has lightning like bitunix or something like that. Which one is using lightning so i can use them