Reddit iOS photo picker no longer shows Collections/Hidden album. Anyone know how to get it back?

Previously, the iOS picker had Photos and Collections tabs. I could tap Collections → Albums → Hidden, authenticate with Face ID, and select a photo directly from my Hidden album.
Now Reddit opens a different-looking picker that basically shows all photos together and a Folder dropdown. There is no Collections option, and I can’t find any way to access the Hidden album from there.
Has anyone else noticed this change?
Is there a way to:
switch back to the iOS picker with Photos / Collections
access the Hidden album from the new picker
change an iOS or Reddit photo permission to restore it
I’m on iPhone 15 Pro/iOS 26. Any help would be appreciated.