20.04 LTS - .To Partition or not Partition?

[Tim_Johnson]

Having used ubuntu since 2007, I have always installed with separate partitions for home and root. However, I have always done fresh installs.
I now have a computer with 20.04 pre-installed without partitioning. If I wanted to perform a new upgrade install of 22.04 presumably next year,
would re-installing the current OS with separate partitions for /home and / be helpful?

If so, should I add a swap partition? I read that the latest ubuntus install by default with a partition file, but I see that it is a matter of discussion.
After all, Linus T seems to favor continuing with swap partition ...

I should note that I am a happily retired programmer and although I'm still doing a little coding, the target machine is meant to be a workstation
for only a slightly higher level than casual use.

As an addendum, I am unable to edit my signature. I getting a permission denied message when I attempt to post changes.