[teeedubb]

I was able to manually compile and add projectm to kodi 18 on 20.04. Follow the instructions from https://github.com/xbmc/visualization.projectm , make sure to checkout the leila branch for both checkouts. After it built I copied the folder ../../xbmc/kodi-build/addons/visualisation.projectm to my kodi addons folder and it works

EDIT: Shadertoy works too