C2sc: why or why not?

does anyone know of a more-or-less recent resource discussing which applications/languages utilize c2sc? the most recent I’ve found addresses Adobe CS5 and Flash 10, so it’s pretty old.

https://ilovetypography.com/OpenType/opentype-features.html

(scroll down; there’s a chart towards the bottom of the page)

I’m asking because in Creative Cloud 2019, it’s not being honored at all, and I’m not sure if that’s a mistake or if it signals a change of intent across the board. I’m not seeing it discussed anywhere.

I believe it is employed together with smcp when you select the All OT Small Caps setting.

…which only exists in InDesign, but not Photoshop or Illustrator. ugh.

Thanks, Rainer.