If by disconnecting and connecting again, or turning off and on again the tablet you do not get a proper functionality of the tablet stylus, then make sure you are not on wayland session. If you switch to X11 session and still the same issue after disconnecting and reconnecting the tablet, then there might be something else we should look at.
Also, in case you want to use it with multiple applications, not just drawing applications, and the “click” is not working with the Stylus, add this line to your ~/.bash_profile
export QT_XCB_TABLET_LEGACY_COORDINATES=1
Note:
I see you shared this:
Only one Section "InputClass" in that file please … and you can’t use two drivers … has to be Driver "wacom" and NOT Driver "evdev"