Just want to make it clear.
FS2020 uses “Symbolic Links”.
A Symbolic Link is just a "Shortcut’. FS2020 data is not duplicated and stored on two different drives or locations.
I did an “Uninstall” from “Settings, Apps, MSFS” and then went to MS Store
and installed FS2020 again. I had FS2020 on D: drive.
“Uninstall” deleted FS2020 from the C: drive but
did not delete FS2020 from the D: drive.
On the new install, MS Store only downloaded and installed the
initial 1.xx GB to the C: drive.
I told it to install FS2020 on the D: drive.
It detected the FS2020 on the D: drive and did not re-download it.