How do you backup your settings?

See this help page. It is not a direct answer, but points you in the direction of the several files that need to be backed up.

https://helpx.adobe.com/premiere-pro/how-to/sync-settings.html

I have sync turned off at the moment, but I recall the structure of the Cloud Files (that are stored locally on your machine, and then synced to "the cloud"), somewhat parallels the main user preferences files. For me on windows, they are at:

The regular local files are: C:\Users\[user name]\Documents\Adobe\Premiere Pro\14.0

The "Creative Cloud Files" folder is: C:\Users\[user name]\Creative Cloud Files\Premiere Pro\14.0

with a numbered folder for each version of PR I have.

I don't know which settings are stored, but they include custom workspaces and keystrokes. For example, custom keyboard assignments appear to be kept here:

C:\Users\[user name]\Documents\Adobe\Premiere Pro\14.0\Profile-video\Win\[Custom].kys

Let us know what you find.

Stan

Which settings are you interested in? Most settings (keyboard shortcuts, custom workspaces, etc.) are stored locally.

If you're talking about going back to an older version of the software, you would need to have that downloaded prior to being offline.

All of your media and project files should be stored locally already.