Hmm... I sense the ops frustration, and no need to take it out on Porteus. It's not for everyone.
How about this - and I'm serious - I've recommended it to those who get a tad flustered these days, and is often overlooked:
Raspberry Pi Desktop for PC / Mac
Currently 32-bit. 64-bit *maybe* in the future.
https://www.raspberrypi.org/software/ra ... i-desktop/
If burned to a usb stick with Etcher for instance, when you first boot it up, it will auto-expand the filesystem to whatever size your stick is automatically. If that works for you, rather than using gparted to do the same, then bingo!
The overall desktop is very simple, and the devs take great pains coming from the Mac side of the design house to try and make it all self-explanatory and easy to use. Well, as much as they can.
Like instead of going into window managers or desktop environments and making 3 different changes to get the look you need, it will invoke Xrandr to emulate a "small / normal / big" resolutions across the board which one can tweak if they want from there. Or yeah, use the 3 different classical menu options to do the same if you have those memorized.
Handy, but sometimes will break child-windows, like the option menus in VLC. Means you have to go back to the standard res to set options for vlc. But still, they are attempting to make it as super easy as possible for many things. Stuff like that.
P.S. If you seek support, DO NOT call it "Raspbian", which is for the actual raspberry-pi hardware. Identify your issue with the Raspberry Pi Desktop. Note that you are buying into the Debian / Systemd thing, which may not matter to you. For some it does.
Give it a shot. Then come back to Porteus when you are ready for a different and slightly more hands-on approach.
That's a UNIX book - cool. -Garth