I always begin with a Debian minimal install (on bare metal though, not on Qube): no GUI. Just a minimal install, disk encryption/LUKS and booting to a text console. From there I install X, the awesome WM (a tiling WM) etc. It feels very light (despite the systemd monster of a PID1 and overreach spreading its tentacles everywhere around the system).
Needless to say: when I'm on my wife's Ubuntu desktop, it feels very heavy compared to my very minimalistic Debian / Xorg / tiling WM.
Needless to say: when I'm on my wife's Ubuntu desktop, it feels very heavy compared to my very minimalistic Debian / Xorg / tiling WM.