Reboot no bugcheck only file pow32kwatchdog.dmp

Cpu: i7-9900K stock 4.7 with Noctua NH-D15
Gpu: Rtx 2080 Ti Aorus Xtreme Waterforce ( stock no oc,temps max 63C on load )
Ram: 32gb 2x16 GB DDR4 GSKILL 3000MHZ XMP
Psu: Seasonic Ultra Prime Titanium 850W
mobo:Asus Prime Z390-A

Hello.
Hi. My question. I had a crash in Metro Exodus after 20 hours ,during exiting to MAIN MENU. Black screen,crash to desktop and unexpected reboot.

After crash to desktop i decided to log out from system and log back in again,and then system rebooted unexpectedly.

Why system rebooted after the crash? It happened once. After reboot file appeared: --> PoW32kwatchdog.dmp
windows/livekernelreports/PoW32kwatchdog.dmp <======== ( 1,8GB )
"a callout to win32k did not return promptly" windbg read
KD_0x1A1_WIN32K_CALLOUT_WATCHDOG_win32kbase!UserPowerInfoCallout


My question is. Why i dont had any bugcheck in eventlog? Only Kernel 41 and windows/livekernelreports/PoW32kwatchdog.dmp

1) Update the spes in the "My Computer" section:

System Specs - Fill in at Ten Forums
In the left corner below in your post you find 'My System Specs'.
After clicking it you can find a link a little below that says 'Update your System Spec', click on this link to get to the page where you can fill in your system specs.
System Info - See Your System Specs - Windows 7 Help Forums

Include PSU. cooler, case, peripherals and anything attached to the computer by wired or wireless (mouse, keyboard, headset, printer, xbox, USB wireless network card, etc.)


2) Run each V2 and DM and upload results directly into this thread.
BSOD - Posting Instructions

3) Post a separate share link using one drive, drop box, or google drive for the 1a1 dump file.