Prior to the release of MacOS Catalina, Logitech had a message saying they'd update MyHarmony to 64-bit. That message has now been replaced with the page below. Is it safe to say
Logitech Harmony 900 Universal Remote Review - The Gadgeteer
How to uninstall Logitech Harmony Remote with Revo Uninstaller
Harmony Software
Logitech Harmony Companion Manual, Software / Apps, and Review