What is Bagginsbill "selling"? He's given a lot away, but to my knowledge, he hasn't sold anything (although he certainly could have!!).

I work with surgeons, Kawecki. They, like you, can only see a problem/issue/condition from one perspective. Trying to convince them to open their minds and consider that - oh, my GOODness! - they may have missed something, is completely impossible. I'm accustomed to the highly educated/thus completely blinded to new information approach.

So, I can accept that your way of thinking, however wrong, exists. I will not accept that you are right, since I actually DID the exercise of linearising colour information prior to processing and then correcting before rendering. I have published those exercises.

Until you can give more than opinion - incontrovertible proof - that colour information does NOT need to be linearised in Poser before processing and then corrected prior to rendering via a series of screen captures explaining your process and renders to show your results, then your opinion remains nothing but just that: your opinion.

Which makes you the artist (and right about monitors, and Bagginsbill the scientist... and right about Poser render behaviour.

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks