Nope that’s not where the core sim is located it should be in
C:\Users\MSFS\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe
and if everything looks OK then try the following command in Powershell
“cmd.exe /C start
shell:C:\Users\MSFS\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe!App -FastLaunch”