How make MyPaint works with WACOM Finger Touch?

Description of the Problem, or Question?

I have a touch screen, wacom tablet ISDV4 with
Wacom Finger Touch
Wacom Pen Stylus
Wacom eraser

I want use mypaint with Wacom Finger Touch (i have a capacitative pen that simulate the finger touch but more precise), but not works on application. Application detects device,detects movement, but not paints. Painting with Mouse working, and I suspect Wacom Pen Stylus works, but I don’t have a compatible stylus pen for now.
So, how can configure MyPaint to work paint with finger touch?

Basic System Details

Garuda Linux x64

MyPaint version:

Operating System + Version:
Garuda Linux x64
KDE 5.27.8
Kernel: 6.5.8-zen1

Make and Model # of Graphic Tablet:
Wacom ISDV4 4841:

Wacom HID 4841 Pen stylus id: 12 type: STYLUS
Wacom HID 4841 Pen eraser id: 23 type: ERASER
Wacom HID 4841 Finger touch id: 13 type: TOUCH