I have read that the
/home folders can be separated to their own partitions on a physical drive to be able to re-install the system while keeping the users in the home-partition intact.
However, how viable is this approach exactly in Ubuntu 18.04, especially regarding installed programs?
Let's assume that: I have a regular user-folder on a separate home-partition, containing an ecryptfs Private-folder that I use to store some extremely sensitive documents and a .wine-directory with some Windows-software installed and configured. Also, I have a password set with live-updates activated on my user account with the Ubuntu welcome-screen.
If I now format just the separate root-partition for any reason while keeping the home-partition intact, will I be able to re-install Ubuntu and continue using my old user account with live updates and my old passwords as soon as I also install ecryptfs and Wine on the new system? Will everything work the same as it did on the old installation or are conflicts of some sort definitely to be expected?
(I am aware that some software may always cause issues in such a situation, but I'm asking this in a general sense, knowing that there is no certainty that every single program will function after a re-installation or an upgrade, for that matter.)