Affinity Designer Shape Builder Tool

[handrawn]

appears not; art brushes are still not true vectors... pity, that might well have brought me back into the fold...

[Acorn]

appears not; art brushes are still not true vectors... pity, that might well have brought me back into the fold...

If the Art Brush design is fairly simple then it renders as Shapes after your Convert Line to Shape, hence SVGable.

Acorn

[handrawn]

if I take one of the ink and paint [art] brushes - the shape is vector, but the texture does not appear to be a vector fill

if I export a quickshape with vector fill, it stays vector; an art brush does not [unless I am doing something wrong]