I cannot switch between dictation languages on iPadOS 16.2

Apple update/upgrade diseases iPadOS 16.2 (worked until 15.7.2 at least) 

Accessibility features:

Onscreen keyboard

After pressing the microphone button: Dictation time-period for German is only three seconds, after these three seconds, English drops in and writes, what the system has phonetically understood of my German words, but in English. Result is mixed sentence: first some German words, then English. Somewhere in Apple documentation this time-period  was specified to last for 30 seconds.

Cannot switch between dictation languages (English to German and back) by toggling the microphone button.

Furthermore:

Saying "zoom down" has the same effect as saying "Zoom up" (minor problem) 

IPad does not react on command "hey siri", sometimes it is after saying "lock screen" 

On some websites it does happen that saying "scroll Down" does not [scroll Down]

Reboot out of the blue

Favorites in safari are sorted in an own -let's say apple specific - way, but for the normal one definitely not sorted 

This is a short description with minimal use case information. Further information will be provided if desired.

Proposal: introduction of a new descriptive tag for every update: "renders the system un-/usable"

I thought with Version 16.2 beta testing is over.

Thanks to the community for possible help.

Michael

[Re-Titled by Moderator]