Do a bit more in depth later....
11 Pro Max
Siri: Will at times print on the screen instead of using voice.
Mail: Mismatch between badge, Unread Total, and totals on accounts.
Messages: Notifications don't always play if the device is locked.
App Library: Every non-Apple stock app is in Recently Added.
App Library: Big three in each folder are frequently seldom used apps.
Widgets: more later .... grrr......
AirPods Pro: When switching to AirPods from Speaker on call the other party frequently hears a squeal.
IPP 11 2020
AirPods Pro: Listening to IPP with Airpods, Airpods will sometimes jump to 11PM when unlocked.
Mail: New can suddenly appear in the midst of reading others kicking you out from your place in the mail list.
Mail: same issues with count as 11 PM.
Mail: Unrfead count and account count don’t match emails listed in view (status) See below.
Messages: non-iMessage messages will not forward from 11 ProMax.
Safari: tabs show from 11 PM that have been closed.
Magic Keyboard: Onscreen keyboard will popup when Magic Keyboard is attached and active.
8 Plus
Screen Time: Parental Controls are messed up for DownTime.
Screen Time: Parental Controls are effecting Outlook contacts requiring random password request for Outlook to background update.
Battery: Anything video is eating battery.
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More to come....