Well this might explain why your Hue Matter firmware doesn’t work in SmartThings:
Apparently SmartThings doesn’t support Matter bridges yet?!
Aqara notes that only Google Home and Apple Home will be able to see Aqara’s devices connected to the M2 hub after the firmware update, while other Matter apps (like Amazon Alexa and Samsung SmartThings) will work just as soon as they support the Bridge device type.