MartinKupka I don't think MTR devices are able to use Windows LAPS yet.
The Windows Update cycle on those devices is different from those of regular user devices.
Currently the supoprted feature version would be "Windows 10 21H2 feature update". Using a different version can bring issues with it as it's not supported by the Teams Rooms software.
https://learn.microsoft.com/en-us/microsoftteams/rooms/updates
https://learn.microsoft.com/en-us/microsoftteams/rooms/rooms-release-note
Windows LAPS, however, is part of a security update and I haven't been able to find any documentation on how those are handled by the automatic update approach as provided by Microsoft and its Pro Management System and such.
We also use MTR devices and would like some clarification on this to be honest.