So I have (or had!) photos on my iPhone with iCloud backup/photos. Recently google photos advised that as all of the photos were in google photos it could clear a vast chunk of space from my phone...which is great - however when I check iCloud photos via web - they seem to be gone there too? I can’t see them in google photos either...slightly confused as I thought they’d remain in iCloud. Need to recheck google Photos too. Have I totally misunderstood how iCloud photos works?