To complement the sketch command for use with a pen tablet, there should be pressure sensitivity. In Illustrator and Affinity, pressure is interpolated between points. You can add points on the curve to change the width of the curve. This would help make sketch curves look more hand drawn.
Affinity uses a curve profile as base for mostly legacy reasons. It would be nice if these pressure points could also be exposed to the user to make complex vector art/ hand drawn sketches.
