clearstream
(He, Him)
I would consider them potentially simulationist for some set of experiences/subjects/treatments.In my view I have yet to come across an RPG not able to provide me a simulationist experience per my understanding of @clearstream 's description. If that is the defining criteria for "simumationistic", then yes I would consider all RPGs simulationistic.
So @Hussar can say that the treatment they want is equal or greater detail in mechanics than the threshold they find to be met by some set of game texts. But they cannot say that excludes some other text from meeting a different preference.
Quite a few times now it's been pointed out that the label "simulationist" is irredeemably vague. Multiple things games can do are lumped under it. It's therefore unsurprising to find different folk labelling different things games can do "simulationist". What is suprising is how tenaciously they contend that their definition is right for all sets of "simulationist" preferences.