
Not quite so. I have now re-installed Linux Mint 20.1 four times, and each time the install is ready and says to remove the installation medium and press 'enter' I am greeted with a black screen. If I choose to run Linux Mint from the USB stick everything works flawlessly.
Haha, I hear you thinking, you should hold the 'shift' key, to start Grub. Not so, this is an EUFI system and you need to press 'Esc' for that.
But the most depressing thing is that this only works one out of ten tries -you can hear from the sound the system fan makes if it will actually start or only give a black screen that does not react to any key. And while the first install brought me in a normal Grub afterwards, later installs brought only command line Grub, and after giving 'exit' I get a mile-long PCIE, TLP and DLLP error list. If the system starts afterwards, it is for a few minutes and the screen goes black.

After a few days you begin to suspect the PSU, the Mobo, the CPU and/or the hard disk (Yup, old SATA HDD) and all combinations of them.