Hi,
Actually we can find very fast Windows OS from “Actions -> Get Information -> Get OS version / Service Pack Level” but since many years the Service Pack information is not so revelant.
The minor “UBR” value is most useful to verify if a machine is up-to-date !
Actually I got this information from BatchPatch for Windows Server 2019 : 10.0.17763 (SP0) [x64-based PC]
The best result should be for a Windows Server 2019 updated with latest updates of November 2022 (Out of band), for example: 10.0.17763.3653
The value “3653” can be collected from:
Registry under UBR field
MSInfo32.exe
WinVer.exe
WSUS console -> version column
… But not from BatchPatch for the moment.