Xfce Notifyd In i3wm

create the file /usr/share/dbus-1/services/org.freedesktop.Notifications.service and add the following

[D-BUS Service]

currently I'm using fedora so the Exec path looks like this, you can look for the executable using find or download the package xfce4-notifyd from pkgs.org, e.g. this is the wanted package in fedora xfce4-notifyd-0.6.3-1.fc36.x86_64.rpm*

go to files and look this executable xfce4-notyfyd then copy its path and put it in Exec in the notifications service. Finally save the service file and restart your session.

* the version may vary :)