A paper published in ScienceDirect's Additive Manufacturing Letters journal details the algorithmic benefits of wave-inspired path planning for flat, unsupported overhangs – similar to arc overhangs we've seen before, but cleaner.

As with arc, seeing it up close it looks nothing short of magic. The paper's author points to OrcaSlicer and PrusaSlicer forks with the feature enabled, so you can try it out (provided you're comfortable compiling the software yourself.)