In fact, just about everything in Windows (not apps, since those can be created by 3rd party developers who may or may not care, but the OS) can be operated by keyboard: login, start menu, settings, even ancient tools like Event Viewer.

Except, strangely, for setup - if you don’t load your laptop’s touchpad/trackpad driver during the early select a partition screen, you seem to get stuck on later screens like when you are required to connect to WiFi.