In essence, this build is the "definitive edition" for perpetual license holders—the last major update before Microsoft shifts full focus to newer LTSC releases.
Historically, Microsoft released Office versions with year-specific monikers (e.g., Office 2016, Office 2019). was released as a perpetual license option intended for devices that cannot accept feature updates or for organizations not yet ready to move to the cloud-based Microsoft 365 subscription model. Microsoft Office Professional Plus 2021-2024 V2412 Build
Word 2024 focuses heavily on screen reader support and better voice recognition than its 2021 predecessor. Comparison: Office 2021 vs. Office 2024 In essence, this build is the "definitive edition"