Gallery and Albums

At the bottom of the screen there's an AIPPics tab (this app's own icon) — every photo and video in the current repository, as one flat list, with no folders. (Not available for SMB or Photos — there's no single "everything" view for those.) Your folder structure starts at the Tree icon, on the bottom-right — see Display modes.

Local also has a Photos tab next to it — a mirror of your entire iOS Photos library, kept separate from this app's own Gallery/Albums (not to be confused with the separate "Photos" repository reachable from the repository switcher, see The Photos repository — same name, different feature: this tab is a shortcut inside Local, that repository is a whole separate backend like Desktop or SMB).

Browsing and selecting work the same as anywhere else, but deleting is different: this tab is just a mirror that resyncs against your whole Photos library every time you open it, so there's no meaningful way to remove a photo from the mirror alone — it would just reappear the next time it refreshes. Deleting here always deletes the real photo from your Photos library, through Apple's own confirmation — decline that and nothing is removed, from here or from Photos.