That one seems to be Z6 and Z7 specific. The rest of the Z family and their newer, mark II versions are lacking behind.
Not sure how they work at lensfun, there’s a 7 month old request to add the Z 6ii, which hasn’t been dealt with yet.
True, but if you auto update it will be overwritten each time. I have the same issue with my Z6ii. I’ve scripted the manual update so it can run after a changed/updated lensfun db.