That won't work. Windows won't let you finish the installation process unless you connect to the internet so you can't get the PC to a point where you could install the drivers.
Really?
When did this come up?
I know tons of people who run Windows unactivated. The key difference is there's a watermark. Otherwise, it seems to work fine.
The official solution[1] is to slipstream network drivers onto the Windows image before installation.
The official solution for non-technical users is to buy a PC with Windows preinstalled.
[1] https://learn.microsoft.com/en-us/windows-hardware/manufactu...