This is my thought on this topic…
I have been using manjaro for years and I had to re-install once (when I bought my new pc a couple of years ago).
I am very conservative about updates; I never update before reading the update announcements, and surely not before checking out that any bugs found will not affect me (having older hw is a bleshing some times, as bugs do tend to affect newer hw).
Also, having a more stable Desktop (xfce instead of kde) or even having a Window Manager (like openbox that mabox has), is a good thing; not many thing change and when they do they are usualy properly tested beforehand.
So, having a mabox system means:
You don’t have to worry about your graphical environment giving up on you (I suffered the transition from KDE3 to KDE4, a long-long time ago, and let me tell you it’s ugly AF)
You have to only watch out for kernel issues (kernel - hw combination) that might make your machine unbootable
You also have to watch for specific apps you just can’t live without, so that they do not break ufter the update.
I just updated to the latest update (not yet announced by manjaro, but already on the servers) and got no problem. (well, vbox has problems, but that does not bother me at this point)… But kernel 5.12 does not (yet?) work for me…
You see I inspected the packages of the update and thought it would be ok to update early… I might do such a thing in 10 years time, or with the next release, who knows? I usualy am not so brave!
Final word: as @napcok said: always read the Stable Updates - Manjaro Linux Forum and you will be ok on mabox even if you are not an experienced user.
Oh, one thing I forgot!
Always download the update (from a terminal) with
sudo pacman -Syyuw
but always switch to a virtual console (Alt-Ctrl+F2) to perform the actual update. This will save you from a lot of pain!
sudo pacman -Syyu
Oh, yes and another thing…
Updates are always performed fully. You cannot just pick and chose which packages you will update. You either go on with the update, or you don’t. This is very important, as a partial update will surely lead you to a broken system…