No worries, this is not yet another post on the term.
Instead I found this 2014 article by John Shook (philosopher) who lists 26 possible “definitions” (read: uses) for the “Scientism” while laying out how this abstraction is (like others) inevitably packed with polemics, rhetoric and agenda. I am just adding it to the list of abstractions we need to be aware of. Don’t let abstract words trick you: the ones you use on your own agendas (where you persuade yourself) or those used to persuade you.
— See my other posts on The Limits of Abstractions here.