Fellow Forum Members,
My online bitcoin laptop is setup with bitcoin core v0.15.1.0 and Armory v93.1. I have not turned it on for years. However, I managed to update it to the latest Ubuntu v18 bionic beaver. My question is simple. After bitcoin core finishes syncing up in about another 3 weeks and then I launch my v93.1 Armory software am I still going to be able to see my wallet balance of one original bitcoin? In other words, are the versions of Armory and Bitcoin Core I'm using just too old to still successfully work and show me a correct wallet balance? 

Additionally, I hope somebody can clarify for me the following. In the old Armory v93.1 software there was an Armory download to install onto the Online PC and a second Armory download to install onto the Offline PC where the private keys are kept. Now for Armory v96.5 I see there is only a single Armory download. What happened to the Offline PC Armory download?  I am confused about this change and I am hoping someone out there can clarify to me why has the OFFLINE PC Armory download been eliminated? Are we now expected to keep are private keys on the Armory installed on the ONLINE PC?  That would be a big change in security because keeping them on an Offline Armory PC setup seems a lot safer to me. Or are we expected to use the same v96.5 Armory software download and install them on both an ONLINE PC and OFFLINE PC? 

Lastly, I have never really felt comfortable with the Ubuntu Linux OS. I am seriously thinking of setting up an entirely new system under the Windows10 OS which I master a lot better. In my head I see this workflow:

1. Download bootstrap file via torrent file link.
2. Install Bitcoin Core 18.1 and sync it up.
3. Install Armory v96.5 and allow it to sync up with Bitcoin Core data.

Where I am confused is my wallet on Ubuntu. Will an Armory Ubuntu wallet still be recognized on a Armory Windows setup? Additionally, do my private keys on my Offline Ubuntu PC stay where they are at?  Or do I need to move them to a separate offline Windows PC?  In short, is it a good or bad idea to migrate from Ubuntu over to Windows?

I hope somebody out there will be kind enough to address my questions so I can have a clearer idea of what path to follow.  Thanks in advance for any help.