lyssalw Said:
"iCloud upload paused: I upgraded my iCloud storage to 2TB because my photos took up 220GB on my iPhone. However, the syncing process keeps updating and then pausing. What is the point of upgrading if I still need to clear my photos?"
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Changes are occurring. So, disable items in your iCloud settings, and the syncing would stop.
Download all of iCloud:
If you want to get less storage in iCloud, downgrading your iCloud plan is the way to go. Note that this has a monthly fee. Here is the link to user: iCloud+ Plans and Pricing - Apple Support. Note that this service is not available in all countries/regions.