In MSFS 2024 The Super Decathlon is already backwards compatible to 2020. Only issue is some screens are dim. I have a fix and its uploaded to the Official Marketplace waiting ingestion and will be on my website shortly.
The GTN’s have also been updated to the newest version for both PC and Xbox as well. This will be version 1.0.3 for MSFS 2020. Most recent updates are in my Discord for all of my planes here - Hangar Studios 713