Make Brush corners same as end shape

[Utkesen]

Hi Guys.
I'm hoping you can help me here, im a newbie on affinity for ipad.

I am trying to crate a brush that has a pencil like start and end to it. (fig 01)

If i just paint a single line (fig. 01), mission is accomplished, but when im writing a letter with corners, the end point gets a totally sharp line instead. (fig 03)

Is there anyway to avoid this, and making the corners same shape as the brush end, like in example 2 (fig. 02)

Also sometime the corner points are messing up the stroke, so it gets twirld in the vector points, also in (fig. 03) in the top