In my experience, unlike an SVG path that has a single line thickness and opacity value, a vector stroke in Clip Studio Paint has thickness and opacity data per point. In addition, these points can have image textures, just like the raster brushes. These features make the vector path better depict a hand-drawn stroke. A Clip Studio user can easily switch between vector and raster mode with the same brush, but Krita cannot achieve this.

The Blender Grease Pencil also represents vector data in this way (per-point attributes). I find it promising and try to develop add-ons for it. But I am not familiar with Krita plug-in development and do not know how much its vector painting can be improved.