[PLUG] Preparing to update OS

[Richard Owlett]

I've 3 laptops and and a desktop with various releases/flavors of Debian.

Which Debians do I wish to download.

One laptop is easy as it's 32 bit i386 (yes i386 Debian near EOL).
For one laptop lscpu reports architecture as "x86_64"
For one laptop and the desktop it reports "i686".
As all three have line saying "CPU op-mode(s):        32-bit, 64-bit" 
can I download only one current 64 bit release?

TIA