This is the standard method for enterprises using LTSC (Long Term Servicing Channel) versions.
This version is optimized for modern 64-bit processors. While a 32-bit version exists for legacy compatibility, the 64-bit architecture is recommended for devices with 4GB of RAM or more Microsoft Office LTSC 2021 ProPlus X64.pt-BR.iso
Avoid if:
Professional Plus (includes all, plus advanced apps). This is the standard method for enterprises using