Eventhough we could migrate OneDrive content with PowerShell. I'm giving a try to migrate content with ShareGate PowerShell addins.

ShareGate - Script to migrate OneDrive with ShareGate libraries.ps1

# tenants 
$tenantOne = connect-site -Url https://tenantOne-admin.sharepoint.com -Browser
$tenantTwo = connect-site -Url https://tenantTwo-admin.sharepoint.com -Browser

# List of unique user names of users need to migrate 
$csvFile = "C:\OneDriveMirationUserEmailList.csv"
$table = Import-Csv $csvFile -Delimiter ";"

# ShareGate incrementatl copy config. This will be only usable if you are copying incrementally 
$copysettings = New-CopySettings -OnContentItemExists IncrementalUpdate
<#
Other options:

New-CopySettings [[-OnWarning] <OnWarningAction {Continue | Cancel}>] [[-OnError] <OnErrorAction {Skip | SkipAllVersions | Cancel}>] [[-OnSiteObjectExists] <OnSiteObjectExistsAction {Merge | Skip}>] [[-OnContentItemExists] <OnContentItemExistsAction {Overwrite | Skip | Rename | IncrementalUpdate}>] [[-VersionOrModerationComment] <String>]

#>

# user names 
$tenantTwoAdmin = "[email protected]"
$tenantOneAdmin = "[email protected]"

# Passwords
$tenantOneAdminPswd = ConvertTo-SecureString "1eafawtrf" -AsPlainText -Force
$tenantTwoAdminPswd = ConvertTo-SecureString "rhgtrehfd" -AsPlainText -Force


foreach ($row in $table) 
{ 
    # definitions
    $upn = $row.login
    $OneUPN = $upn + "@tenantOne.onmicrosoft.com"
    $TwoUPN = $upn + "@tenantTwo.onmicrosoft.com"

    # write to console 
    $dateTime = Get-Date
    Write-Output "________________________________________________________________________________"
    Write-Output $dateTime
    Write-Output "________________________________________________________________________________"

    # getting Two user config
    $TwoPersonalSite = Get-OneDriveUrl -Tenant $tenantTwo  -Email $TwoUPN
    Write-Output "Copying from	: $TwoPersonalSite"

    # getting One user config
    $OnePersonalSite = Get-OneDriveUrl -Tenant $tenantOne -Email $OneUPN
    Write-Output "Copying to 	: $OnePersonalSite"

    # copy content config 
    $site = Connect-Site -Url $TwoPersonalSite -Username $tenantTwoAdmin -Password $tenantTwoAdminPswd
    $dstlist = Get-List -Site $site.Site -Name "Documents"

    $site = Connect-Site -Url $OnePersonalSite -Username $tenantOneAdmin -Password $tenantOneAdminPswd 
    $srclist = Get-List -Site $site.Site -Name "Documents"

    #region COPY 

    # full copy - uncomment below if you are performing a full copy
    # Copy-Content -SourceList $srclist -DestinationList $dstlist

    # Incremental copy 
    Copy-Content -SourceList $srcList -DestinationList $dstList -CopySettings $copysettings

    #endregion COPY
    
}

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Got questions? Post your question on Twitter and dont forget to tag me with @meetKushan
#>