Request #61101 has been Rejected by xiota [1].
[1] https://aur.archlinux.org/account/xiota/
While maintainer has modified the package, the deletion request
stands. As stated earlier, upstream is unmaintained, and the binaries
are not useful on vanilla Arch in current state. Installing the
following packages make no difference: extra/noto-fonts-emoji,
aur/noto-color-emoji-fontconfig, and
xiota [1] filed a deletion request for emoji-keyboard-appimage [2]:
Upstream is perpetually unmaintained. [a] The binaries were built Oct
2022. They do not work as expected. No point keeping.
[a]: https://github.com/OzymandiasTheGreat/emoji-keyboard
[1] https://aur.archlinux.org/account/xiot