@Flohack thanks for clearing things out. I think it is cool that UT is still around after Canonical ditched it.
I have reinstalled my phone now with 16.04/dev and things have improved. Battery life is much better and it is a bit more stable I would say. It must have been the anbox-kernel which made my life hard.
I will file a few issues I have with Morph and have a look at the issues labeled :"good first issue".
Thanks and keep up the good work!