A Patron asked me how to make dotted outlines, this is how you do it.
Make sure you add a Simplify modifier before the dot dash and set it to Sample. This evenly distributes points along the line, and you can control the density of the points with the length slider.
Then add the Dot Dash modifier and set both the Dash and the Gap to 1.
Don't forget to enable the Z pass in View Layer Properties to render the Line Art correctly.

If you have more grese pencil/lineart related questions, feel free to ask me either in the comments or in direct message.