I updated to OTA-7 with the custom script (UBports installer PR517 didn’t went to the end…)
My installed apps were all still there 
Then I tried re-installing anbox:
adb shell
chmod u+x install_anbox.sh
./install_anbox.sh
However, android apps are loading forever and phone is getting hot and hardly responsive…
@Ingo Is this the correct steps to restore anbox after an update? Is kernel flashing necessary or not?