iPad storage is almost full... but, no, really, it's not 'almost' full at all.
I have an iPad Air 2 with 16gb. 10.1 gb used and that almost full notification.
I also have an old iPhone 5s, 16gb, 12.9gb used and no notification.
The iPad has a newer version of the OS and that warning came with the update. No problem before.
I tried to reboot, remove more apps, clear the cache in chrome, erase the books downloaded, etc. the used space goes down, the warning doesn't.
Since Apple has decided I can't control the device I own, I have very limited ways to see what is happening, disable that notification, or really do anything about it.
What strategies have worked so far to remove that issue? short of reinstalling everything from scratch.
iPad Air 2, iOS 12