Saw that video by Flyby11 a couple of days ago. Looks easy enough and you can keep your DATA. I was gonna build an I7 in the coming months (<$1K) to replace my Xeon (12 cores) but I think I'll save the $$$ and buy a GF instead.
I just watched it too... seems no different than the RUFUS method - I'm sure you are aware of the Rufus USB formatting tool for making boot disks of any sort, if you don't already have it in your kit.
Same sort of thing... DL the ISO from MS
Download the latest
Rufus, run it, and point it at the installation ISO...
If it is a Windows 11 media, Rufus offers some tasty options, to include the ones needed to overlook installation barriers, and a few others, like an alteration to let you create local accounts instead of having to give an MS email account to log into (that's a big one for me).
Now, all that seems pointed toward a fresh installation, but simply navigate to the created USB, and run setup from there, and it will do an upgrade installation, letting you keep your files, and without booting to the USB stick.
I may have said before that I favor the Rufus method.
