I created /etc/fonts/local.conf:
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>
<alias>
<family>sans-serif</family>
<prefer>
<family>Noto Sans</family>
<family>Twemoji</family>
<family>Twemoji</family>
<family>DejaVu Sans</family>
</prefer>
</alias>
<alias>
<family>serif</family>
<prefer>
<family>Noto Serif</family>
<family>Twemoji</family>
<family>Twemoji</family>
<family>DejaVu Serif</family>
</prefer>
</alias>
<alias>
<family>monospace</family>
<prefer>
<family>Noto Mono</family>
<family>Twemoji</family>
<family>Twemoji</family>
</prefer>
</alias>
</fontconfig>
and set the font to Noto Mono in settings. I restarted but its still showing old bad emojis.