Hi Charles Buckhouse,
to downgrade your Windows Server 2022 Standard license to Windows Server 2019 Standard, you will need to contact Microsoft Volume Licensing Service Center (VLSC) support. They will be able to assist you with the downgrade process and provide you with the necessary steps to complete the process.
You can contact VLSC support by visiting Volume License Key Phone Numbers | Microsoft Volume Licensing.
Have a nice day.
Kind regards,
Lei