He probado con varios formatos de vídeo y de audio y no funcionan las vistas previas de archivos multimedia en Dolphin

¿acaso me falta algo?

2 months later

Eu non teño unha resposta para vostede, pero eu gosto do xeito que ten golfiño marcou. Estou indo a imitalo.

Grazas.

This was resolved in IRC back then, an app that was previously on the ISOs was missing, and is since then added back the ISO and available to KaOS default installs (multimedia thumbnailer)