I don’t see ContentBrowserRootMountPoints and Core.ContentMountPoints mentioned anywhere on the internet.
The best I could find about this in the docs is this article, under the section “Adding and Removing Sources”. And adding our personal library as a plugin seems like the way to go.
This Youtube tutorial shows how to make a “Content Only” plugin.
One thing that isn’t mentioned in the tutorial is that you can move the plugin folder to the Engine\Plugins folder and it will be visible in all projects within that engine version.
Still, I wish this was a purpose-built feature.
This comment by a staff states that a personal asset library feature may come to FAB at some point in the future.
By the way, the comment by mahammadsutar is AI generated…