I'm looking for a way to quickly transform simple lines into wavy, zigzag lines and so on in QGIS. I already tried to use the method reported by @christoph in a question posted in this forum (Drawing wavy, wiggly lines in QGIS?) but I can't make it work. In ArcGIS this is a default option, I would like to make it so easy to apply it to my projects as well.
the results I'd like to achieve are these: