Although *buntu is in love with snaps (snapcraft) to deliver and update apps on any Linux distribution, it was time to have a look on the new QGIS 3.4 Flatpak package. And using Manjaro with a dated QGIS-version (and non-GRASS) in its repo, Flatpak is the quick solution.
Some days ago I thought about using a Linux-Distribution from an USB-Stick, not a Live-System – instead installing a Distro on a Stick. USB 3.0 performs quite decent and USB-Sticks >= 32GB are quite cheap. But does installing a Linux-Distro from the Install-Live-Stick to an empty Stick really work (and boot) ?