So I would say that your devices are showing up very well in Gladys since you can see them.
It’s the service configuration part that hasn’t been developed yet in Gladys.
Not having any Tuya devices, I won’t be able to help you provide the information needed to add your devices’ functionality.
The Tuya integration was just to test, I’ll of course move to direct Zigbee… when my Zigbee2MQTT is working… and when those devices report via the SonOff dongle…