We're trying Matter devices on HomeKit but currently using ESP32 DevKits except the M5Stack. It wasn't really mentioned in the Enabling Matter PDF that only the M5Stack is supported but there's a preference for it for testing?
I have tried building the firmware for an ESP32-DevKit and I keep getting 'Unsupported setup code' despite tweaking the vendor and product id.
Haven't checked the code yet if there's just M5Stack specific code support for HomeKit provisioning but throwing this question either way here.