Yes they’re not in those either.
I’m using Krita 5.2.9 & am still on One UI 6.1.1 (haven’t updated to 7) & I don’t know if there’s something funny going on with file access (?!I’m not techy) but now have copied the kra & png files via SD Maid (these files weren’t viewable in normal browsing, only those with the ‘desktop’ suffix were) :
& just made additional folders for them within the extracted Papers V1.0 - Classics folder, so now I can open the kra’s directly & save the png’s into patterns (can’t use the wet ones as they’ve the droplet icon? 
So I’m nearly there via some silly route I’ve made for myself 