No, I've never seen Google Photos reflected in any Google Drive interface (web, OS integration, etc.) which on the one hand makes sense (think of Google Photos

No, I've never seen Google Photos reflected in any Google Drive interface (web, OS integration, etc.) which on the one hand makes sense (think of Google Photos more like a database-driven black box app than a hierarchical filesystem) but on the other hand Google Drive does show gdocs, gsheets, etc. (which is also sort of a black box app, as the "files" seen in GDrive are merely lightweight stubs). Only in storage quota views do Photos and Drive (and Gmail, etc.) commingle.