Hello,
The screen first shows the Dell logo at boot. I can get to the Windows boot menu if I boot to Safe Mode. It won't accept my password though.

I've updated the BIOS and done all the Windows Updates. The origin of this was I closed the laptop normally, gently rested it on my couch, re-opened and it stopped working. I'm writing this on the external monitor but I really need the portability. After this started, it worked OK twice, but starting failing again after I closed the lid. When I remove the USB-C cable the touchscreen's backlight illuminates to a gray.

I usually like Dell's stuff but this is ridiculous. The laptop is just over a year old so how could I ever buy another Dell product? Any ideas?