If you have a Microsoft 365 business plan (E3, E5, or Visio Plan 2), you can use in any browser—no installation required at all. This is the only official “portable” Microsoft solution.
High-fidelity import and export options for Visio files. Microsoft Visio Portable Download
You can carry it on a thumb drive and run it on any PC. If you have a Microsoft 365 business plan
While tempting, downloading a "Visio Portable" from unofficial sites is highly discouraged. Here is why: or Visio Plan 2)
Attempting to bypass the subscription or perpetual license fees associated with official Microsoft products.