MSFS what I never understood

Hi,

I have issues I never understood. First of all I have MSFS 2020 Steam edition and on my Desktop I  have two shortcuts: 

one that says:  steam://rungameid/1250410  - and one that says: Location: Flight Simulator(C:\Program Files (X86)\ Steam\Steamapps\common\MicrosoftFlightSimulator) both work and if one doesn't I choose the other.

1.Why two shortcuts?

2. The second problem is recent: I have the Simulator on an ssd drive called MSFS2020(F:) on drive F and another I installed recently called FS 2020 (H) which is on an M2 drive. This latter one I created copying the community folder and the Official folder in the subfolder FS 2020 but if I open it there is a  folder saying Program Files and openi it it has another folder called ModifiableWindowsApps, clicking on it it is void, also there is a folder XboxGames and it is void and underneath it a  GamingRoot file. I have tried to cancel the Program Files, XboxGames and GamingRoot but they always show up again. There must be a problem...

When I want to play on the new created FS 2020 (H:) changing the UserCfg to the right path, in this case FS 2020 it works but not in VR with Pimax Crystal (the one with batteries). There I see  only alle the stars of the Univers (probably from the home menu) and hear the sound of MSFS but no other image. Sometimes though it opens the Flight when starting on the runway but it is unstable and no click can stabilise it. I also see the Menu of OpenXR Toolkit but very jittery and from there I cannot revert back by escape, I have to shut off the Desktop computer manuallly.

Therefore VR is not possible. Can somebody help me figure out what could be wrong and provide solution?