Update: Savage Carbon - STOL Realism Mod (v2.10 / Dec 27, 2022)

[GotGravel]

Check the first post of the VL-3 915 Mod, it has a detailed explanation on how to find your Community folder, which can be different depending on your platform and installation:

VL3 - Rotax 915 mod

Microsoft Flight Simulator / JMB Aircraft VL-3 915 [splash screen] This project is a realism and conversion mod turning the stock VL-3 912 into the versatile JMB Aircraft VL-3 915 top-of-the-line edition. This sporty composite plane is the fastest Ultra Light side-by-side in the world, able to sustain 370kph / 200kts cruise speeds at FL180 yet requiring only 180m / 590ft of runway. She’s a sports car with wings, and yours to fly! The Project We are a team of like-minded enthusiasts that loved…