Apple will permanently delete photos in July — how to keep yours safe
iCloud is now Apple’s preferred place to store photos and videos across all devices.
This effects the My Photo Stream album.
“The photos in My Photo Stream are already stored on at least one of your devices, so as long as you have the device with your originals, you won’t lose any photos as part of this process,” Apple notes on its support page.
So this is an old legacy thing in Photos on the Mac? This feels like a non issue