I have an Asus gaming laptop that I run Ubuntu on. I seem to have about the same use-case as you. Mine is large so it barely fits in my backpack, but it does.

I have an Asus gaming laptop that I run Ubuntu on. I seem to have about the same use-case as you. Mine is large so it barely fits in my backpack, but it does. My ideal laptop would be this one with an infinite battery life.