Office 365 is licensed per user with licensed account, so it could helps ensure that subscribers accessing Office 365 ProPlus and etc are licensed appropriately on a shared computer. The Office 2019 could be activated by Active Directory instead of the licensed account. It does not need Shared Computer Licensing mode.
The "perpetual license," one-time purchase Office Home & Business, Office Home & Student, and Office Professional can only be installed on a single computer at a time. If you either want to move it to a different computer or reinstall after a repair to your current computer you need to first deactivate the initial install.
If yes, considering we mainly focus on Microsoft 365 Business subscription version of Office, for Office 2019 Professional Plus we have a dedicated channel Microsoft Q&A Community - Office deployment, for you to be assisted properly, we sincerely recommend you go to that community and post a new thread, members and engineers over there are
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install office 2019 professional plus