iCloud / iCloud photos and iCloud backups

AhmedHameed wrote:

on my iCloud I have 200 GB plan , now 180 GB is occupied by photos ( 90 GB in photos and another 90 GB in backups ) how I can get rid of one of them so I have more space and also while doing it how I can preserve all the photos and avoid losing them . Thanks

https://discussions.apple.com/content/attachment/64b578f1-6a0d-4937-8c95-cfcfdabe2610

https://discussions.apple.com/content/attachment/8d6560ab-c4af-41e4-b86e-272d168a93e6

https://discussions.apple.com/content/attachment/11511578-d575-4b74-9ad4-ad0cc5a8edbb

Using this Set up and use iCloud Photos - Apple Support is not included in this https://support.apple.com/en-us/HT207428

AhmedHameed wrote:

So can I turn off the backup / photos ?

and just use iCloud photos ?

Click both links and read through it.