With MS-DOS/Windows 3.11, I had a very good idea about
what was going on, even though I didn't have the source code,
nor did I run those OS's under a machine language monitor.
Nowadays, OSes in general are more and more like black boxes,
overly complex to the point even the developers don't know
exactly what's going on with the very OS they are adding and
changing code for. Most Linux distributions which you have
access all of the source code to are impossible for one
person to fully understand the internal workings.
Yes, we need to go back to simpler OSes, that does not have
all of the bloat and eye candy that is really there for marketing
purposes, stuff that is also plaguing the %100 free and open
source Linux distros. If this is something for a Smart TV,
then fine, the OS can be a noisy seizure inducing circus.
But I expect my work computer to be a tool, and look like
one too.