LadySmith1994 wrote: Yes, but …
I think a point that léonie may have been making was that, since turning off Optimize on an iPad can't cause Optimize to turn off on a phone, then you should try to understand what happened.
But in any case, her advice:
On the iPhone with iOS 18 you can turn on the "Optimize Storage" in the "Settings > Your Apple Account > iCloud > Photos". Tap "optimize iPhone Storage".
is valid. Just turn Optimize back on for your iPhone, and leave it off on the iPad.
By the way, after you turn Optimize OFF on the iPad it may take a while for full sized pictures to load back on.
how do I reverse that? I don’t want to optimize storage in my photos.