Yup...
I can agree with all that you said....
Still...
I think when the new librem 5 comes out ...the intent by the plasma mobile team is to be prepared...for it.
still even still...
3 gb ram on the librem 5 ..is a mite bit on the lean side for plasma ...
I would want more still for plasma...
like a absolute minimum of 4 gb
6 would be fine ..
8 would be optimal..

3 gb is shaving it close ...for what is to be expected not only out of plasma ..but the expectation of resource consumption out of standard applications in the next few years ...on top of the consumption of what plasma wants...

And yes it isn't as resource hungry as gnome or now defunct unity...
But that is if you keep the settings down...to +1 +2 +3 ...out of +10..

But who the hell wants to keep the settings down when you have plasma??
what is the point of having plasma if you can't turn everything on the dials up to +11 out of +10???

I think we are heading back to the Pinto - Lamborghini ...or rather as I now will coin it
"The Pintoghini Dilemma"
hahahahahaa
that sounds pretty freakin cool...actually ..
an insanely fast suicidal exploding hybrid super-car ...

ooooh...that gives me an idea for the final countdown halloween moviefest...
Gotta add
"Christine"
and
"Killdozer"
to the list of must watch before halloween hits..
then it is pure old skool Bela Lugosi , Boris Karloff , Lon Chaney Jr. ...etc...