@Emil
Since version 2.1 of Matterbridge the dimmers should show up as 0x0101. Unfortunately I don't have the twist but for example my tuya dimmer is now shown correctly.
@craig-2 There is an official MQTT integration for the Flic Hub LR SDK, which can be used for HASS integration. It works passably well, but I am partial to this version, which is much more fully-featured, and has worked pretty flawlessly for me.