I had to run a hidden script at a specific point during the install to allow me to not have to use a Microsoft account
No, all you had to do was leave the PC disconnected from the internet during the install.
I had to install a 3rd party Nvidia driver update tool because their official one requires making an account and gives a bunch of unwanted ads as notifications.
The nVidia driver, direct from nVidia, certainly does not require an account. Only need an account if you plan on using GeForce Experience.
Installing Windows from scratch is as easy, if not easier, than installing Linux. If you think it's difficult, that really seems like a you problem.