$TeamsID = ''
Send-TeamsMessage -URI $TeamsID -MessageTitle 'PSTeams - Pester Test' -MessageText "This text will show up" -Color DodgerBlue
PS Core was lacking Out-GridView for some time, but it is now available as a module. It supports Windows, MacOS and Linux.
Install-Module -Name Microsoft.PowerShell.GraphicalTools
Source code can be found at https://github.com/powershell/GraphicalTools
Source: Out-GridView Returns | PowerShell