Probably, because what you’re looking for is extremely hard to find. I DID come across someone selling something like you wanted, but it’s meant to be used as a raspberry pi hat, so not quite sure whether that meets your requirements. Will update my post if I manage to find the thread.
(EDIT: Found the thread: Z-Wave 800 Controller and ZigBee 3.0 Coordinator GPIO combine board for Pi 4B and Pi 5)
Otherwise, if you can justify 2 separate devices (always a good idea in case of hardware failure), Tube’s makes excellent POE coordinators for both Zigbee and Zwave. I’ve used his (older, non-Poe) coordinator reliably for almost 3 years and it’s been rock solid.