All photographs you take on your iPhone are immediately uploaded to the iCloud servers and linked with all of your other iCloud devices using iCloud Photos. As a result, if any photos are deleted from your iPhone, they will be removed from your iCloud Photo Library as well.
Go to Settings on your iPhone. Choose iCloud for your name. Nap Photos in the menu. iCloud Photo should be switched off. You may now remove photos from your iPhone.
Deleted images and videos are supposed to be kept in your account for 30 days, according to Apple really they’re migrated to the Recently Deleted album. Yes, after 30 days, those files will no longer appear in the Recently Deleted collection on synced devices or on iCloud.
Yes. Your photos will not be backed up by iCloud. Photostream images are only available in iCloud for 30 days, and if you remove them from your iPad, they vanish from all of your other devices as well.
After 30 days, photos and videos deleted from your device are kept in the Recently Deleted album, where you can recover or permanently remove them. Then choose Hide from the drop-down menu. Pictures that have been hidden are placed in the Hidden album.