The stroke fonts are now stored in generic SVG format.
So you can use fonts supporting this format with the custom stroke font add-ons / extensions and use your custom fonts in other applications.
Inkscape Custom Stroke Font Tutorials:
• Stroke Font Extensions for Inkscape V...
• Stroke Font Extensions for Inkscape V...
• Stroke Font Extensions for Inkscape V...
Blender Writing Animation Add-on: • Text Writing Animation in Blender 2.8...
Blender Stroke Font Text Add-on: • Free Blender 2.8 Stroke Font Text Add-on
New Hershey Text extension: https://gitlab.com/oskay/hershey-text
New Hershey Text Fonts: https://gitlab.com/oskay/svg-fonts