There are two installers, a user-specific one and a system-wide one.
Nothing has changed; you must've downloaded the system-wide installer
The point of running Chrome from AppData is so that it can update
itself without requiring administrator privileges for every update (no
UAC popups). If you install using the system-wide installer, it also
installs a system-wide service to update Chrome in the background, so
Torne (Richard Coles)