@Rick_Mann - welcome to the Tormach user forums and thanks for posting!
The ZA6 robot version of PathPilot is on Python 3, with Qt as the GUI framework. We’re working on a similar upgrade for the CNC PathPilot. As you might imagine there is a lot of work involved and we plan to be on the Python 2.7/GTK version for the remainder of 2023. Just like when we went from PathPilot 1.x to 2.0, we will have free upgrades for machines less than a year old and “at cost” upgrades (~$20 USB install stick) for everyone else.
I hope this helps with your plans.