Hi Yesh Rajawat, per my test, currently the Set-SPOUser cmdlet is support giving access to another user. Updates are also synchronized in SharePoint admin center.
You can run below cmdlet in SharePoint Online Management Shell:
# Connect to SharePoint Online
Connect-SPOService -URL https://domainname-admin.sharepoint.com
# Give new owner access to terminated user's OneDrive.
Set-SPOUser -Site https://domainname-my.sharepoint.com/personal/ownername_domainname_onmicrosoft_com -LoginName newowner
@domain.onmicrosoft.com -IsSiteCollectionAdmin $true
For more information you can refer to the documentation: How to Give OneDrive Access to Another User
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Best Regards.
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