RFSoC Gen3 Image?

The v2.7 PYNQ release supports the Gen 3 data converters. i.e the Python driver is provided.
We won’t release images for other board, but you can port PYNQ and generate your own image.

You can find a third party image for the ZCU216 here:

You can find info in the PYNQ docs about porting PYNQ to custom boards and info on these forums showing how to port PYNQ using pre-build images, and the ZCU216 port above could also be useful for you.

Cathal