My Photo Stream shows on Mac (in iCloud prefs & in Photos) but does not on iPhone or iPad (in Settings or Photos app).
Here’s what I see:
iPhone 6s Plus (iOS 13.6.1)
Settings>Name>iCloud>Photos has ONLY TWO options - iCloud Photos & Shared Albums (neither selected).
Photos app (current version for this iOS) available albums are Recents, Import, and Favorites
iPad mini (2) Retina (iOS 12.4.6)
Settings>Name>iCloud>Photos has ONLY TWO options - iCloud Photos & Shared Albums (neither selected).
Photos app (current version for this iOS) available albums are Camera Roll and Favorites
Mac 21.5 inch 2017 (Mojave 10.14.6)
System Preferences>iCloud>Photos shows THREE options - iCloud Photos, My Photo Stream & Shared Albums (ONLY My Photo Stream selected).
Photos app (Ver 4) shows the following under Library: Photos, Memories, Favorites, People, Imports, My Photo Stream and Recently Deleted. Under Albums: Media Types (Videos, Live Photos and Screenshots) and My Albums (blank). Under Projects (blank).

Here’s what I see:
iPhone 6s Plus (iOS 13.6.1)
Settings>Name>iCloud>Photos has ONLY TWO options - iCloud Photos & Shared Albums (neither selected).
Photos app (current version for this iOS) available albums are Recents, Import, and Favorites
iPad mini (2) Retina (iOS 12.4.6)
Settings>Name>iCloud>Photos has ONLY TWO options - iCloud Photos & Shared Albums (neither selected).
Photos app (current version for this iOS) available albums are Camera Roll and Favorites
Mac 21.5 inch 2017 (Mojave 10.14.6)
System Preferences>iCloud>Photos shows THREE options - iCloud Photos, My Photo Stream & Shared Albums (ONLY My Photo Stream selected).

Photos app (Ver 4) shows the following under Library: Photos, Memories, Favorites, People, Imports, My Photo Stream and Recently Deleted. Under Albums: Media Types (Videos, Live Photos and Screenshots) and My Albums (blank). Under Projects (blank).
