On this PC, xfce4-power-manager requires xfce4-notifyd.
This may be why xfce4-notifyd is still launched at startup.
pactree -r xfce4-notifyd
xfce4-notifyd
└─xfce4-power-manager
But if I don't need these two applications, I can uninstall them:
sudo pacman -R xfce4-notifyd xfce4-power-manager
jwm is on aur or on chaotic-aur :
trizen jwm
1 chaotic-aur/jwm 2.4.6-1
A lightweight window manager for the X11 Window System
2 aur/jwm 2.4.6-1 [4+] [0.00%] [10 Nov 2024]
A lightweight window manager for the X11 Window System
https://aur.chaotic.cx/
https://aur.chaotic.cx/docs
###
P.S. I don't use the Arch repositories, but I have installed a few rare packages from aur or chaotic-aur using yay or trizen.
trizen is in the galaxy repository:
pacman -Ss trizen
galaxy/trizen 1.68-1.1 [installed]
Trizen AUR Package Manager: lightweight pacman wrapper and AUR helper.
https://wiki.artixlinux.org/Main/Repositories
yay in on aur or on chaotic aur.