One extra added feature that I noticed - wifi calling

Today I received pie update with one ui in my on 8 2018

Face unlock is not working on my phone properly, It also open when eyes closed. Plz fixed it.

There is no option for update apps. I want to update my apps through galaxy apps but I can't. When I want update apps like this Galaxy apps > click on 3 dots > click on sign in(because there is no option for update), after clicking on sign in there i...