I think we saw the same error recently here: Windows 11 Darktable 4.4.2 won't start - #3 by kofa
And there’s been a handful of these cases of dt ‘just won’t start’.
Could it be something related to a Windows update?
You can disable OpenCL in the preferences by unticking the checkbox:
I must confess I’m not sure if this is enough to prevent the startup issue.