In my workflow I use A LOT vectors in Affinity Photo and it's able to import the PSDs I made with vectors and text layers.
However as soon as I export back to PSD, I see that text and vectors are rasterized... Please add support for text and vectors in exported PSD files from Affinity Photo.
The vectors should be vector, still, so we may need more information about what's happening there.
Text is rasterized because PSD is a proprietary format of Adobe that is only partly documented, and Serif have not reverse-engineered all the details to be able to save text in a vector format.