The one you posted sounds like a repost of this github mod (I use this github one)
There’s a topic campaigning for the G3X to be updated to high fidelity in a future AAU update too! (It’s really lacking features in-sim compared to IRL, it would be OK if the G3X was upgraded to ‘NXI’ quality).
It’s also the only native avionics system that hasn’t been updated as the GNS430/530, and G1000/3000/5000 have all received the ‘Working Title Treatment.’
No diagreement here, it’s the only base-game non-airliner aircraft I won’t fly.
But the one I want updated the most is the C208
It would be nice to have the G3X, C208, and Kingair updated in the future. (But that’s a topic for their respective threads)