Animate 2020 What does the "Stabilizer" under "Fluid Brush Options" do?

So I found this little setting when digging around with the Fluid Brush, however is it meant to be a rename for "Brush Smoothness"? Or is it meant to stabilize as you draw like Lazy Nyzumi, Clip Studio, or Paint Tool Sai?
I'm asking this because it doesn't seem to be working like the latter.
If it does work for other computers, I take it that it doesn't have support for 4k monitors like the Cintiq?
