I was lucky enough to be able to share the full breakdown of my stained glass Material on 80LVL.
https://80.lv/articles/creating-stained-glass-material-in-substance-designer/
Thanks to Kirill Tokarev.
You can find the sources I made for this article, here :
https://gumroad.com/vincentderozierart
Here is the original material :
https://www.artstation.com/artwork/4Vywk