I take this for a portable version of Chromium which I use as a "standard browser" in Windows and install it seperately
likely to: D:\ProgPortable\Internet\Iridium\
OpenSource and Libre.
It is far more better IMHO than "Iron Browser" concerning security / privacy issues which once was on Microsofts browser choicing list.
No commercial issues.
Branded by developers whose only concerns are privacy and security.
More secure and lean than ungoogled Chromium. https://portableapps.com/node/64643 - No hardware ID
Compatible with chromium plugins nore than for example does Vivaldi.
Only to be updated about twice a year, but cause of its security adjustments this doesn't really care.
No in situ update - but that is a favor.
HTH and Greetings
Edit2: Differences between Iridium and Chromium: https://github.com/iridium-browser/tracker/wiki
Edit3: it might not to be included in the PortableApss platform due to security reasons. Sad to say that, but a matter of fact.