About the portable version

[Admini]

Is portable version fully portable, no entries are written to the registry? Personal data is not lost when browser is moved to another PC?

no entries are written to the registry? 
In fact there are still few items are created, mainly browser metrics and window state.
These items are not related to any privacy, and their code pieces are distributed in different place.
So we didn't remove them all.

Personal data is not lost when browser is moved to another PC?
Yes.