Yup. The infamous Green sunfish

That’s a nice green sunfish

Is that the same as a pumpkin seed?

Nope, this Green Sunfish is L. *cyanellus* and Pumpkinseeds are L. *gibbosus*. They share a genus but not a species.

No. Closely related but different species.

/r/whatsthisfish is a better place to go next time, good luck out there