Hi Brad,
I contacted Synergy Support in April 2023 with this question.
They replied: "We are considering adding a wrap option in Synergy 3, although that will probably not be available until after GA. In the meantime, it's possible to support the layout using a custom configuration in Synergy 1."
I therefore did not upgrade to Synergy 3, but I believe the first version is still available to download, which I still use.
Symless offered to help with the process, but I used the principle of the below solution.
It works fine with my old MacBook Pro laptop between a M1 Mac