I've made something fairly decent for rendering in video games through the use of hair cards while maintaining the shape of blender's interpolated curve. Using their new curve system from blender 3.3, it can generate interpolated curves for the sharp looking furs or generate hair cards for softer low effort rendering that can be used in video games.

Credit to Randy who made Hair Card geonodes:
https://www.youtube.com/watch?v=LfRZYaPOCSk&ab_channel=RandyGonz%C3%A1lez
https://bgntechart.gumroad.com/l/efwvm

Interpolated Hair Curves from Ruaidri:
https://www.furaffinity.net/view/51844134/

Viewport is in Eevee