Just started using openhab, installed habian on an raspberry pi 4, no problems there.
I have invested in a new switch from Logic Home that I would love to get working,
Matrix ZDB5100 : https://logic-group.com/products/matrix-switches/#MatrixDBtab
When including the device “Thing type label” says Unknown device.
Manufacturers many times use different device ID information for the same model. The warning in the database is not usually a critical issue.
What version of openHAB are you running? Your version may be too old to include this device.