The specific version string microsoft-office-2019-pro-plus-retail-vl-en-us-update-2021 often refers to installers that support both licensing types:
Intended for individual consumers or small businesses, usually tied to a specific Microsoft account. microsoft-office-2019-pro-plus-retail-vl-en-us-update-2021
Resolving bugs that might cause crashes in heavy Excel workbooks or large PowerPoint decks. microsoft-office-2019-pro-plus-retail-vl-en-us-update-2021
The Professional Plus edition is the most comprehensive version of the 2019 lineup, designed to handle everything from complex data analysis to high-end desktop publishing. It includes: microsoft-office-2019-pro-plus-retail-vl-en-us-update-2021
Even as newer versions like Office 2021 and Microsoft 365 take center stage, the 2021 updates for the 2019 suite are critical. They provide: