As of now Microsoft Teams Rooms on Windows (MTRoW) run on Windows 10. Although Windows 11 is available for some time by now. There is no Windows 11 support on MTRoW, now. However, Microsoft is going to support Windows 11 on devices which are capable of running Windows 11 in regards of the supported hardware requirements. Meaning not every device can get Windows 11 due to hardware limitations. The roadmap item 122148 states that the rollout and general availability should start in May 2023. The upgrade is targeted to Microsoft Teams Rooms on Windows and Surface devices.