I think I have a solution. What have I done?
At first I tried the Aurora nightly tip from @teatimetom (thanks!).
Unfortunately it doesn’t work. It stucks on the same point as the preinstalled aurora. When I tried to install or update an app aurora reported “no network”.
So I get back to adb-shell and give the following command
adb shell pm list packages | grep aurora
and got org.codeaurora.ims
I deinstalled and reinstalled aurora via preinstalled apps and adb shell pm list packages | grep aurora gives me the result above and com.aurora
But Aurora interrupted the app updates again with the message “No network.”
Then I read this thread
At the point with the discussion about iodè app I thought let’s have a look at it, and I saw that it blocked >play.googleapis.com<.
I authorised it for aurora store and from this point aurora works as expected.
So the problem has been solved for the time being, and I’ll mark the thread.
Sidenote:
After using adb-shell, the problem with not installed but in launcher displayed apps from preinstalled apps, as decribed by @wrenix here is gone.
Thanks at all.