> - Translate feature doesn’t have a copy button

Sure it does. It’s labeled “Copy Translation”. It’s the first button under the translation for un-editable text.

> - Multitasking (apps should shut down after some time spent idle, instead they have to be manually closed)

Apps that aren’t working in the background shut down effectively as soon as they lose focus. Don’t let the list of screenshots fool you – those aren’t running. Don’t waste your time swiping them away.