TL DR- I deleted and reinstalled Apple Podcasts and changed setting to not auto download any episodes. Basically, check ANY media that could be trying to download and/or restore. Photos, music, videos, movies, podcasts, old messages, etc.
Thanks to everyone who posted! Helped me figure out my issue.
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After not realizing that this has been going on in my phone since I got it, yesterday my WhatsApp told me my phone was full. Huh? I have 512 GB and I was nowhere near my limit of space. 300 GB of “system data”. What the hell is this?
My phone had been behaving oddly since I got it. It was slow, seemed to have performance issues and sometimes got hot. Seems to be related to this nonsense.
I cleared my cache, deleted apps I wasn’t really using anymore, hard reset so many times, all which did nothing. Even the hard resets. Still had almost 300 gb of “system data” that would not budge.
I really didn’t want to completely wipe my phone.
I luckily stumbled onto this thread. Realized it’s clearly an iCloud issue. Something has gone horribly wrong with something in the midst of downloading or it had downloaded but didn’t delete whatever it was saving until it finished. The “iCloud queue” as someone pointed out was not clearing on its own. Maybe it’s all the YouTube videos or Instagram reels I’ve been watching. Temp downloads so that it streams cleanly?
iOS is up to date. Can’t download anything new.
Deleted Apple TV app.
Deleted Prime Video
Cleared out books I wasn’t reading from the books app.
Made sure all my music I had purchased was completely downloaded
I did not touch my photos yet
Then realized I don’t download movies or videos as some had pointed out seemed to be the culprit. BUT podcasts….someone talked about podcasts and their Apple Watch earlier in this thread. I didn’t have any on my watch but, I did have a bunch on my phone.
For me it ended up being Apple Podcasts app. I had to delete all pending downloads (so many pending downloads! Who knew?), actually downloaded podcasts, change the setting to stop all auto downloads and ultimately deleted the whole app and reinstalled and then also still had to go into settings and stop all auto downloads again. Default is last 5 of every podcast you subscribe to. Funny enough, my phone actually told me I might want to only keep the last 5 episodes of my podcasts to save space.
And that made it go away. And has stayed away….so far. 12 hours and counting.
It’s seems to be anything that could have, should have, might be downloading. If it was in the midst of downloading and regardless of if it did or didn’t finish it’s stuck in La La land.
If you haven’t already start checking anything that could be downloading from iCloud or anywhere else since you got your new phone or did a restore, check those items.
Thanks to everyone else who’s posted on this. It compelled me to create a user id and post what I found to work.
Hope this helps someone out there.