iCloud - Issue with drive storage - Full but it's not

Try going to iCloud.com/iCloud Drive using a computer browser and click on Recently Deleted at the bottom right. If there are files there you do not need, delete them. Then try iCloud.com/Settings and go to Advanced at the bottom left. Access Restore Files. If there are files there you do not need, delete them.

Hey takemyapple,

I see that you have some concerns with the iCloud Drive storage on the iPhone not updating after having deleted items on the Mac. I'll be happy to help out.

Have you tried restarting yet? If not, try that now: Restart your iPhone, iPad, or iPod touch. Also, if you have Low Power mode enabled on the iPhone, be sure to toggle this off then see if the iCloud storage updates correctly. To turn Low Power Mode off, go to Settings > Battery. Learn more here: Use Low Power Mode to save battery life on your iPhone - Apple Support.

If it still hasn't updated, try switching networks on the iPhone to make sure that you're on the most stable network connection possible. For example, if you're connected to cellular data, try switching off cellular data and connecting to Wi-Fi only, or vice versa. If you're not sure how to turn off cellular data to connect to Wi-Fi only, follow these steps: Check the cellular data usage on your iPhone and iPad - Apple Support

Take care.