Utilizing dbatools along with the Compare-Object PowerShell cmdlet allows for the comparison of SQL Server Agent jobs across two SQL Server instances.
Set-ExecutionPolicy Unrestricted
Set-PSRepository -Name PSGallery -InstallationPolicy Trusted
Import-Module dbatools
Set-DbatoolsConfig -FullName sql.connection.trustcert -Value $true -Register
Set-DbatoolsConfig -FullName sql.connection.encrypt -Value $false -Register
$RefServer = Get-DbaAgentJob -SqlInstance REFERENCE_SQL -SqlCredential sa
$DiffServer = Get-DbaAgentJob -SqlInstance DIFFERENCE_SQL -SqlCredential sa
Compare-Object $RefServer $DiffServer
The result of the comparison indicates whether a property value appeared only in the reference object (<=) or only in the difference object (=>).