It's true that it would be nice to have the ability to see the trading volume on Bisq 2 like in Bisq 1 (but I get that it's not the most important feature to implement first). That being said, Bisq 2 certainly has a pretty low volume, since only Bisq Easy is available at the moment. It won't get much traction as long as Bisq MuSig (a trade protocol similar to Bisq 1) isn't available.