The GE 45631 has been discussed in the community a lot, with many people not being able to get it to work with ST. It functions as a secondary zwave controller, part of the zwave standard that ST has not implemented. (I believe the only secondary controller ST recognizes is the AEON minimote they sell in the shop.) But some people are using it for some purposes, just search on the model number for the discussions.
@duncan from ST said in November that he hadn’t been able to get it to work.
GE/Jasco 45631 Keypad/Controller - #11 by tlrobinson
The secondary controller issue is likely what excludes most control panel devices.
An alternate for some people is to wall mount an inexpensive tablet and run ACTion or a similar smartapp dashboard. If you run in kiosk mode and use a wallmount case that covers the home button you end up with something anyone in the house can use physically without granting them full access to the control app. So good for some use cases, but not others.