Bug 441285

SUMMARY
I use Wacom as mouse on desktop. I do not use any touchpads. When click link, window title cursor often switches to “drag mode” dragging element all over the screen. Very often it happens on panel with application icons. I do not press any additional buttons – just left click.
I was looking for solution but didn’t find any. Most of such problems are connected with touchpads and even mouses. I can’t reproduce it with mouse, so assume that it’s ok.

STEPS TO REPRODUCE
Usually it happens with gentle click. If press harder it occurs less often, but still it happens.

OBSERVED RESULT
In  System Settings there are Touchpad settings. Are they really inactive and do not influence Wacom tablet? Tap-and-Drag Gesture is checked by default there. Is it chance that tablet and touchpad settings overlap?

I tried https://www.mankier.com/4/libinput settings in /usr/share/X11/xorg.conf.d/70-wacom.conf with no result.
Option "Tapping" "bool" Enables or disables tap-to-click behavior.
Option "TappingDrag" "bool" Enables or disables drag during tapping behavior ("tap-and-drag"). 
Option "TappingDragLock" "bool" Enables or disables drag lock during tapping behavior.
        Option "TappingDragLock" "off"
        Option "TappingDrag" "off"
        Option "Tapping" "off"

It more often happens in Map to Cursor (Absolute Mode) and rarely in (Relative Mode). Switching to (Relative Mode) improved situation dramatically. Also left click seems to work better in (Relative Mode). 

EXPECTED RESULT
Expect to have all necessary settings in System Settings to change tablet behavior.
Expect Wacom to work smoothly as ordinary mouse.

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 21.04
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
Kernel Version: 5.11.0-31-generic
OS Type: 64-bit
Graphics Platform: X11

ADDITIONAL INFORMATION
Tablet: Wacom Intuos Draw Pen S (CTL-490-DW-N)

Bus 001 Device 002: ID 056a:033b Wacom Co., Ltd CTL-490 [Intuos Draw (S)]

T:  Bus=01 Lev=01 Prnt=01 Port=12 Cnt=02 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=056a ProdID=033b Rev=01.00
S:  Manufacturer=Wacom Co.,Ltd.
S:  Product=Intuos PS
C:  #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=498mA
I:  If#=0x0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
I:  If#=0x1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=00 Prot=00 Driver=usbhid
I:  If#=0x2 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=usbhid

⎡ Virtual core pointer                          id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Wacom Intuos S 2 Pen stylus               id=8    [slave  pointer  (2)]
⎜   ↳ Wacom Intuos S 2 Pad pad                  id=9    [slave  pointer  (2)]
⎜   ↳ USB OPTICAL MOUSE                         id=11   [slave  pointer  (2)]
⎣ Virtual core keyboard                         id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Power Button                              id=6    [slave  keyboard (3)]
    ↳ Power Button                              id=7    [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=10   [slave  keyboard (3)]