If you have missing emojis in XFCE as i had terminal following informations are for you. I found this on manjaro related forum but it worked for me in my Endeavour OS as well.
Firstly install noto-fonts-emoji
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sudo pacman -Syu
sudo pacman -S noto-fonts-emoji
And edit or create /etc/fonts/local.conf to tell the terminal to use installed fonts. Add following content:
<?xml version="1.0"?><!DOCTYPE fontconfig SYSTEM "fonts.dtd"><fontconfig><alias><family>sans-serif</family><prefer><family>Noto Sans</family><family>Noto Color Emoji</family><family>Noto Emoji</family><family>DejaVu Sans</family></prefer></alias><alias><family>serif</family><prefer><family>Noto Serif</family><family>Noto Color Emoji</family><family>Noto Emoji</family><family>DejaVu Serif</family></prefer></alias><alias><family>monospace</family><prefer><family>Noto Mono</family><family>Noto Color Emoji</family><family>Noto Emoji</family></prefer></alias></fontconfig>
This worked for me in my terminal with Jetbrains Mono font. Or you can use any Sans Serif font.