How do we install Store apps the proper way?

tomdw 

Greetings Community.

Why do my apps disappear after I sign out?
"This happens because you're using Windows 10 Enterprise multi-session with a profile management solution like FSLogix. Your admin or profile solution configured your system to delete user profiles when users sign out. This configuration means that when your system deletes your user profile after you sign out, it also removes any apps you installed during your session. If you want to keep the apps you installed, you'll need to ask your admin to provision these apps for all users in your Azure Virtual Desktop environment."

Citrix Virtual App:
Citrix virtual app may still have an issue. If they cannot follow the fix for AVD, they can use a workaround of reregistering the apps at each logon. This can be done with a logon script.

Windows 10 Enterprise multi-session FAQ - Azure | Microsoft Docs

At this point running the following Script will solve the issue.

Example PS Script.

$regkey = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Appx\AppxAllUserStore\InboxApplications"
$apps = Get-ChildItem -Path $regkey
ForEach($key in $apps)
{
Add-AppxPackage -DisableDevelopmentMode -Register (Get-ItemProperty -Path $key.PsPath).Path
}
$regkey = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Appx\AppxAllUserStore\Applications"
$apps = Get-ChildItem -Path $regkey
ForEach($key in $apps)
{
Add-AppxPackage -DisableDevelopmentMode -Register (Get-ItemProperty -Path $key.PsPath).Path
}

If you are using GPO, you can create a logon script with this.

Our team is working on looking for a permanent solution for this. As soon as we have updates it will published in our Official documentation:

FSLogix Release Notes - FSLogix | Microsoft Docs