Ok, yes, I was skeptical too, but whatever this device is it is certified by the Zwave alliance and it appears on the official list of HomeKit accessories at the Apple site.
Maybe they convinced Apple that Z wave certification was enough to meet the security requirements if the bridge also had a special chip, which it does.
This device is expensive: €429 for the European version, so figure probably $550 when they have a US model. But it’s very cool.
Also… Yes, you could immediately see and configure Zwave associations and central scenes for each device.
Also also: everything runs locally except integration to third-party services like voice assistants.
You can already bring Zigbee devices into HomeKit through an Aqara hub, including the G2H camera. If This works the same way for Z wave, that would be pretty amazing.