Is this correct?
It would seem so. If it is a new installation and you have no important data there, then yes, purge your /home/John and then move the /home/John from the temp folder into /home
Is this correct?
It would seem so. If it is a new installation and you have no important data there, then yes, purge your /home/John and then move the /home/John from the temp folder into /home