Dangerously, out of boredom on Sunday I upgraded my remote observatory PC to windows 11, and yes remotely. I was a little nervous, panicking after I pushed the upgrade button about my rash decision. However, nearly everything worked, including windows RDP, SGP, PHD2, PWI3 (Planewave delta-T and EFA), The SkyX64, Pegasus Astro Utility Platform, ASCOM, SIPS (Moravian), and a few others.
I have however encountered 1 issue. When I power up my devices, my SX Lodestar CCD somehow clashes with my Moravian G3 CCD camera and the Lodestar produces a unrecognised USB device error (never witnessed under Win10). If I recycle the Lodestar CCD USB port via my Pegasus (which takes about a second), it is instantly recognised and all is good. I have run 2 all night remote imaging runs with SGP, on M13 since, and had no issues. In fact I scheduled SGP to start at 23:30, went to bed and happily found 48 image (12xLRGB) on my PC the next morning, with my scope parked, camera warmed up and guiding stopped.
Alternatively if I power my Moravian up after the Lodestar has connected, this also resolves the issue. Not sure how this would have been accomplished without a Pegasus or MHP.
The sensible option would of course been to wait until someone else tested and learn from their issues!