Windows Photos now seems to be color managed

Indeed it is! Excellent. Thanks for posting this - I've given up on Photos long ago and would never know.

The Windows 11 problem seems a bit worrying though, and I'm still waiting for it to explode. But by some statistical fluke, early adopters seem to be less concerned with color management, so the floodgates haven't yet opened.

But this shows Microsoft haven't fired their color management team. And truth be told, we had a similar show-stopping issue with early releases of Windows 10. That time it wasn't color, but really bad banding on 10 bit displays. I was worried then that we were such a marginal group that they wouldn't prioritize it - but they did. It was fixed pretty quickly. Let's hope the same here.