No, if we want to install language package from Store, we can only use Store user interface, can’t use powershell command to install.
Please refer to this guide for more information about Integrating LPs into a Windows image
Local Experience Packs: Add languages to Windows 10 and Server 2019
https://4sysops.com/archives/local-experience-packs-add-languages-to-windows-10-and-server-2019/
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