Same problem here on a near new Alienware m18 R2. I pause updates for a long as possible, but finally decided to bite the bullet (my system was fine, just felt I should catch up). But next time I will read what problems people are having and avoid updates if necessary.
Windows Hello worked great. Win 11 version 24 killed it. It was a known issue and the installation / update system should have known (I read) not to install it, but it did anyway. I've done a couple / few updates since and still no fix is coming through.
My system BSOD's about once a month as well for no known reason, and as a former software developer, I know many ways to try and find the reasons for problems. I do see a lot of Kernel messages, which are not good, that's the core of the OS.
More to the point, within about 2 weeks, my system does the same as everyone is describing, particularly (I think) if I use Win key + L (Lock). After a few minutes, my fans start running at top speed and nothing will wake it up, it's totally unresponsive. Have to hold the power button for > 5 seconds to power it off.
Probably, the only way to get MS to respond, is to contact people in the media with a lot of clout to take it on and make them look bad, so that they may lose business and income. Does anyone have a contact with a major tech news outlet? Or we should file a class action suit. Probably some legal team would be interested in taking it on.
MS has really gone downhill in the quality and robustness of their software over the years and I'm getting really weary of it. I need a solid system to do my work in the financial system.
So time consuming and frustrating! May be time for a change if this doesn't get traction soon.