Galvan is not a typical or frequently seen character in the DC Batman comic universe. Usually, the focus is on Batman and his regular cast of allies and villains. However, there could be the odd crossover or special edition where Galvan makes an appearance.
Galvan isn't a common character in DC Batman comics. You might find them in some rare or specific storylines, but they're not a staple.
Galvan isn't a regular part of DC Batman comics. Batman's stories typically revolve around his well-known adversaries and supporting characters. But you never know, there might be a one-off or limited series that includes Galvan.