FileAccessControll depending on Sync Client

Hello Experts,
Recently I tried to set different rules depending on the Sync Client

  • Android
  • IoS
  • Desktop-Client

The rules are working fine except by my cousin. He has a Surfbook A13B Notebook and is using the “NextCool”-Version of NextCloud. Operating system is “Windows 10 Home in S Mode”
I would have thought that the rules for sync client “Desktop-Client” would work for him despite the fact that his surfbook is a mix between tablet and notebook. But this is not the case. That’s why I am wondering which kind of Sync-Client matches with his operating system/device.
I have googled whether there is a list of all “NextCloud user agents” but I have not found any.
I would be very thankful if you know where I could find the right user agent.

Thank you and best regards