Office 2019 — Portable Microsoft

No legitimate source releases portable Office 2019. Downloads from torrent sites, file uploaders, or unknown forums often contain:

Even if you find a benign repack, “portable” versions are notoriously unstable. They: Portable Microsoft Office 2019

You do not want to discover a corrupted presentation five minutes before a board meeting. No legitimate source releases portable Office 2019

Because the "portable" version is someone’s homebrew attempt to bypass the installer, expect frequent crashes, corrupted files, missing fonts, broken spell-check, and non-functional macros. You might lose hours of work. You do not want to discover a corrupted

Ideal for IT consultants, digital forensics, or privacy-focused users jumping between machines.

A subscription to Microsoft 365 Family lets you install Office on up to 5 devices per user. While not "portable," you can install locally on each machine and sign in. Your settings roam via the cloud. This is the closest legal experience to "portability."