OMG! I think i succeed!
okay so if you are in same situation
here what you need for it: XP pen tablet artist pro 16 tp ofc and manjaro gnome i did it with last version which is 25.0.3 ( here official link: Manjaro Linux - Browse Files at SourceForge.net )
when it is installed connect it to internet
then go to terminal and tape pamac-manager and look up right corner 3 dots go preferences/third party /AUR
enter your password then enable AUR support and check for update
then
install dependency into terminal:
sudo pacman-mirrors -f
sudo pacman -Syu base-devel git xorg-xinput
install via pamac OpenTabletDriver (AUR) with this code into terminal:
pamac build opentabletdriver
then active opentabletdriver so it is automatic:
systemctl --user enable --now opentabletdriver
Then go into your apps you should see opentabletdriver in system app jsut open it. it will recognize the tablet but the screen will be black.
You must go to system tool again hardware manager and install the gpu drivers.
then restart computer
go to teminal tape cat /sys/class/drm/*/status and plug your tablet. one of the disconnect should be connect. That is your hdmi recognizing your tablet.
the screen must appear.
Now i need to setup the stylus and calibrate it.