On virtually all Forums, the "Two Button Reset" using the combination of the Volume Up Button together with the Power Button is recommended to force reset Surface Devices, including the SB 2, the Surface Laptop and other newer Surface devices.
https://support.microsoft.com/help/4036280/surface-force-a-shut-down-and-restart-your-surface
The above link recommends a different method for newer Surface Devices and has recently even been updated to include Surface Go. Therefore, it seems to be up to date.
It recommends the two button procedure only for older Surface Machines.
Apart from this official recommendation, the two procedures lead to different results, the Two Button Startup ende in the UEFI menu, the recommended procedure ends in rebooting my SB 2 15".
Which procedure is to be used, for example when resetting to retrieve the "lost dGpu"?