[z2h-a6n]

That is the common interpretation in the field, and in fact the phrases "strange metal" and "non-Fermi-liquid" are used somewhat interchangeably.

I'd point out that there is another interpretation of resistivity that is linear in temperature, namely that the basic physics of electron transport [1] is the same as a standard metal, where the scattering rate (proportional to resistivity) is proportional to temperature squared. The difference from normal metals is attributed to the linear increase in the carrier concentration (e.g. density of free electrons) with temperature. Since the carrier concentration (in the simple model) is inversely proportional to resistivity, this partially cancels the T^2 dependence of the scattering rate and produces T-linear resistivity. This is not (yet?) widely accepted in the literature, and I doubt it can explain all T-linear resistivity, but I think there's fairly strong evidence to believe it could explain some instances of T-linear resistivity, e.g. in the cuprates [2]. (n.b. I'm academically associated with some of the proponents of this idea, though I'm personally somewhat agnostic on the matter.)

[1]: https://en.wikipedia.org/wiki/Drude_model [2]: https://iopscience.iop.org/article/10.1088/1367-2630/ab4d0f