From the release note :
Operating System PC-DMIS 2019 R1 operates under 64-bit Windows 10, Windows 8.1, Windows 8, Windows 7, and Windows Vista. No other operating systems are supported.
Since is an older version of PC-DMIS, Hexagon will no say for sure Windows 11 would support.
I was hoping to find someone who is running this version of dmis on a newer computer.
I have tried 2019 on W11 and it does not function correctly. I do not recall the functionality issues, but I remember text and icons not showing the correct size and being cut off in areas.