Microsoft Flight Simulator Microsoft Store Community Folder Location
I struggled to find the Community Folder for days but with You Tube friends advice I managed to get in the right track. Make sure you have Administrator rights to your user name and you untick the Hidden and read only option by clicking properties on your user name so the folders appear.
Make sure you change in Flight Sim to Development Mode in options as well. Restart PC every time you move a MOD File to the Community Folder.