(1) As lacrumb has often said, we are not Microsoft here. We are just more/less lowly users like you but maybe with a worse addiction who try to help each other through thick & thin in rain, snow, sleet & hurricanes. Only earthquakes & volcanic eruptions might slow us. If you want to torment Microsoft, try the Feedback Hub (type into Search). They actually do sometimes respond to posts there, but I'm unsure how timely &/or effectively.
(2) I think, if BIOS is still showing a display, the display adapter likely is OK, but Windows has an issue with it. So, what are the responses you get when you try each step in that article you posted? Now/then lately even I will boot to a black screen, but Ctrl-Alt-Del immediately thankfully brings up the sign-in screen. And **** WinKey + Ctrl + Shift + B does a refresh of the screen too just as the article says.. What about CapsLock & NumLock & the other things the article said (if you could do them)?
(3) Best make a new Windows Installation USB drive, & try to boot to it. It is best to have one that is equal to or greater than the version of Windows that is installed. Make your Win 10 Installation media here...
https://www.microsoft.com/en-us/software-download/windows10
Download Windows 10 - This is always the latest finalized Windows version, currently 21H1.
Download MediaCreationTool21H1.exe & run it to make a Windows 10 Installation USB drive or burn an .iso to DVD. Follow the instructions under "Using the tool to create installation media". As it says, match it to the Language, & Architecture(x64/64-bit or x86/32-bit) of the computer on which it will be used. The Windows Editionto take is "Windows 10", which includes both Home & Pro.
(4) Then, to boot it, you need to press an F-key during boot to get to the BIOS Boot Menu. If you don't know it...
https://www.sysnative.com/forums/threads/get-access-to-bios-settings-boot-menu-f-keys-hotkeys-by-system-manufacturer-oem.23010/
Get access to BIOS settings & Boot Menu: F-keys/Hotkeys by System Manufacturer (OEM)
Note: That is an informative 3rd-party site. But I know nothing (bad or good) of any downloads or links that are there.
(a) Insert the DVD or plug in the USB Installation media.
(b) Bootor reboot the computer.
(c) Press & hold the F-key at the manufacturer's logo (or at the black screen just before the logo).
If the key was pressed in time, mine shows activity at the bottom of the screen,
& the BIOS Boot menu soon shows up.
(d) From the BIOS Boot Menu, choose the "UEFI" option for the media, if offered.
Mine names the device brand & precedes it with "UEFI:".
(e) If it were a DVD inserted, you get a message to "Press any key" to boot it.
If not pressed in time, the DVD will be bypassed & Windows will try to boot.
(f) When the Installation media boots, select "Repair your computer" instead of to install.
The computer will reboot to the Recovery Environment at the "Choose an Option" screen.
(5) The first thing I would try is "Troubleshoot > Advanced Options > Startup Repair". That worked for me once when the automatic repair did not.
(6) If (5) fails, & you want to get into Safe Mode, then...
(a) "Troubleshoot > Advanced Options > Command Prompt".
(b) See Option 3 here...
https://www.tenforums.com/tutorials/2304-boot-into-safe-mode-windows-10-a.html#option3
Boot into Safe Mode on Windows 10
Read through it, & post back any remaining question. Good luck.