Hi T_H,
Welcome to Affinity Forums
There's plans to implement/develop one but it will only be integrated if the development teams are happy with the quality of its output. Currently you have to use a third-party application like Inkscape (open source), Super Vectorizer 2, Vector Magic or a web service.
Check those threads for more info:
- [ADe] JPEG, bitmap tracing to covert to vector
- Image Trace - Raster to Vector conversion
Orsej reacted to MEB in vectorization of imported pixel graphics