• Good keyboard with text navigation keys (Home, End, Page Up, and Page Down) and a sensible layout: delete at the top right, no stupid replacement of normal modifier keys with fingerprint readers or copilot keys, no tiny arrow keys, etc.
• Good touchpad that’s precise, doesn’t lag, and allows clicking on most or all of the total area

I don't think these should be that important. Even if one uses a single device for every need in the form of a laptop, one can still attach a keyboard and mouse to it. The worst customizable keyboard and wireless mouse will still be better than whatever the laptop has built in.