The script-fu from post #1 works in GIMP 3.
However, most of the links are for GIMP 2.10.
Perhaps someone could create (collect) links separately for GIMP 3?
I'll add information about the 8bf file page here (not in post #1).
https://www.lismibaebi.com/FiltersandPl ... ugins.htmlYou can download, among other things, the iconic, though rarely available, Impressionist filters (which are 30 years old and still work with PSPI) and copies of Meister MuR (they don't work in GIMP, but do work with/through Paint.Net).