pacman -Syu xorg xorg-xinit lxqt sddm lxappearance kvantum kvantum-qt5 noto-fonts noto-fonts-cjk noto-fonts-emoji ttf-joypixels xcursor-vanilla-dmz
pacman -Syu xorg xorg-xinit xfce4 xfce4-terminal xfce4-whiskermenu-plugin xfce4-screenshooter xfce4-pulseaudio-plugin lighdm lightdm-gtk-greeter lightdm-gtk-greeter-settings
systemctl enable lightdm.service
pacman -Syu xorg xorg-xinit bspwm sxhkd xterm rofi polybar picom feh thunar thunar-volman scrot
pacman -Syu xorg xorg-xinit gnome-shell gnome-terminal nautilus gnome-tweak-tool gnome-control-center gnome-keyring gdm
systemctl enable gdm.service
these packages are universal for all the DE/WMs, ie: you can use these with any DE or WMs
pacman -Syu acpid dbus thermald tlp
systemctl enable acpid.service
systemctl enable dbus.service
systemctl enable thermald.service
systemctl enable tlp.service
if you observe screen tearing issue on intel based integrated GPU check this link -> intel screen tear resolve.
pacman -Syu xf86-video-intel intel-ucode libva-intel-driver libva-utils vulkan-intel xf86-video-amdgpu
Note : xf86-video-intel package is optional as it contains some bugs
pacman -Syu xf86-input-libinput xf86-input-evdev libxkbcommon-x11 xcb-util-cursor xcb-util-keysyms xcb-util-renderutil xcb-util-errors