Where do they hide the version numbers for Store apps now?
Look at the last update of that Web Experience and click on it. Or look at the installed Apps advanced options.
Or with P.S. command to get the list of all the installed Apps. 😉
Get-AppxPackage -allusers | Select Name, PackageFullName
MicrosoftWindows.Client.WebExperience MicrosoftWindows.Client.WebExperience_423.5100.0.0_x64__cw5n1h2txyewy