I was really exicited to read that the iFly devs are wanting to implement MSFS 2020 support. However, I was looking around to at least get some alternatives hooked up to MSFS, like Avare or FltPlan Go, and I found this utility to run on your PC to connect to your tablet running the EFB: https://github.com/musurca/msfs2fltplan
I got it working with FltPlan Go. Then I fired up iFly GPS, and what do you know, it just works with it too!