Font Selector's features :

Automatic detection of the font folders according to the host OS (if some folders are missing, please report an issue)

Support for 3D text objects and video text strips

Dynamic browsing through fonts without leaving the 3D view/sequencer and with direct visualisation of the font on active text object, like in any other compositing and editing software

Font list stored externally in cache files, to prevent a re run on every startup. Font Selector will automatically check for new/removed fonts and update the list accordingly on every startup

Favorites font system : because browsing through hundred of fonts can be slow, you can mark fonts as favorites, these favorites fonts can be easily access by turning on the favorite filter

Font are stored in families, browsable quickly, user can then choose available type (Regular, Bold, Condensed...)

Reveal file operator allows user to open an explorer to the selected font

Several available locations for the panel (properties, popovers, pop up operator) through the preferences

Load Font Family operator to load all "blender specific" font types of a family in one click. Blender handles multiple font types on a single text object with the limitation of 4 of them (Regular, Bold, Italic, Bold Italic). Font Selector, if available, allows user to set them up for the selected font family