SteelCityAnne Said:
iCloud Space ~ Software Update :
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Downloaded Items Are Note Uploaded:
Q1. "My iCloud storage is 3.2 GB used out of 5 GB . The software update 17.1.1 is 2.95 GB . 3.2 + 2.95 = 6.15 Is this correct …do I not have enough space ?"
A1. You have plenty of space. This would be local stored on your iPhone --it would not be uploaded to iCloud. So, no worries there: What's the Difference Between Device Storage and iCloud Storage? - Apple Support
Loss of iCloud Data:
Q2. "Also , is it possible to turn off iCloud for an item on one device only ? Some of my information doesn't need to be on all of my devices . It appears to me that I'll loose it all if I turn it off ? If that's the case , how do I free up iCloud storage space without loosing content ?"
A2. The only way you would lose that data is if you were to lose access to your account, or if they are not backed up. So, create a backup, using my user tip: Getting a Quick and Direct "iCloud Drive-to-External Hard Drive" Download - User Tip