Can't see all engines to install on MacOS

Development Getting Started & Setup
1

Trying to install Unreal Engine 4.26 Chaos or 4.27. Several of our users don’t have the same engines available to them. Some see Chaos but others don’t. We are using MacOS 12.6.1 or 13.2.1. Why can’t all users see the same engines available to install?

2

Is this from github, or the launcher?