At the very least you need the directory Business Finance.moneydance and all sub folders and files under this. This represents you data set.
The directory 5af2a702-b7a1-4fbf-936e-96d46c816477.tempmoneydance I do not believe was created by Moneydance, I have never seen it create files with this naming structure.
The zip file looks obsolete.
Assuming you wan to keep the same extensions and the same preferences I would be inclined to copy the whole .moneydance structure and then remove the above items to start with.
As you do not use attachments I would be inclined to remove the files under this directory You of course still have the older machine so have a backup their as well as a copy on any media you used for the transfer.
With the sizes you are reporting I do not see any burning need to prune the transaction archives, or incremental txn files. I do not envisage that they are using a lot of space.
the three zip files
/.moneydance/archive/Business Finances.moneydance.zip 11.3 MiB 23/Oct/2015
/.moneydance/archive/Personal Finances.moneydance.zip 1.9MiB 29/Mar/2018
/.moneydance/archive/Personal Finances44.moneydance.zip 4.6 MiB 29/Mar/2018
Line up with the dates I upgraded moneydance so I think they are leftovers from these updates. So I will just delete them I guess.
is a mystery . It looks like the date I upgrade to mondance 2019.
it is pretty much empty so I will try renaming it before I delete it too.
du -h says 25M in 54 files . file dates are mostly 2019 . 9 are from 2020 and 3 from 2021.the file names range from 2015 to 2021 and are all *.mdtxnarchive
not sure what these are. I guess 25M isn't the end of the world so I'll copy these over.
cd .moneydance/Documents/Business Finances.moneydance/safe/tiksync/out
du -h says 8.4M in 808 files so not a big deal.
Now to look at the Personal account.
this achive only has one file in it. 201911.mdtxnarchive 1.9 MiB 08/Mar/2021
du -h says 1.9 M. quite a difference from my Business Account archive.
I know I have much more Stock Price history in the Business Account than in the Personal Account .maybe that's whats causing the Business archive to get so big.
Cleaned up my footprint spreadsheet. Guess I'm ready for the switch over now.