[NAME] - How much time delay is there if your right-click an empty area of desktop and select Refresh? Restarts always take longer than cold booting. A Restart clears everything in RAM.  A shutdown writes what's in RAM to the boot drive, so at next cold boot, it's all immediately read back into RAM, eg icons etc, while Restart has to find the icon cache etc and load them into RAM so they can be displayed. BTW: Do you need to rebuild and/or increase the size of the icon cache? CAVEAT: You edit the registry at your own risk, so always safest to export a copy of the registry before making any changes.
I have a  new XPS 8950. Once or twice, I have had to turn it off with the physical power button because of a total system lockup, probably due to a misbehaving application, although once it happened after a windows 11 update that came up with a totally blank screen.  I've noticed that when I do this, and then hit the power button again, it does not respond. It stays off, and does not try to power up.  Is this because there is a wait period after a physical shut down using the power button? If so, how long? I've found if I unplug and replug it and then hit the power start button, it boots up again fine.  Thanks for any insight into this behavior.   
XPS 8950, forceably turn off, power cycling behavior