E: No se puede localizar el paquete HexChat

E: No se puede localizar el paquete HexChat

Quiero desinstalar Hexchat y eliminarlo por completo para poder instalarlo nuevamente, porque está roto.

Y cualquier "purga, eliminación o eliminación automática" no lo desinstala. Algunos "archivos de configuración" no se eliminan. Cada vez que lo reinstalo, se ve igual (roto).

Intenté utilizar respuestas de preguntas similares: "no se puede localizar el paquete" pero no entiendo nada, soy un principiante. Ubuntu 21.04

Lo usé apt search HexChaty obtengo muchas líneas con Hirsute:

hexchat/hirsute-updates,now 2.1....
hexchat-common/hirsute-updates,hirsute-updates,now 2.14...

¿Qué puedo hacer a continuación? Proporcionaré respuestas con los comandos que alguien sugerirá en la Terminal. Necesito orientación paso a paso.

sudo apt-get --purge removetampoco funciona. (Hexchat está roto y, si lo reinstalo, sigue roto)

/usr/share/applications/io.github.Hexchat.desktop:Name[ca]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[cs]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[da]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[de]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[el]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[en_GB]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[es]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[et]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[eu]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[fi]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[fr]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[gl]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[id]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[it]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[ja_JP]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[lt]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[lv]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[nb]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[pl]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[pt]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[pt_BR]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[ru]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[sl]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[sq]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[sv]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[tr]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name[zh_CN]=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Name=HexChat
/usr/share/applications/io.github.Hexchat.desktop:Exec=hexchat --existing %U
/usr/share/applications/io.github.Hexchat.desktop:Icon=hexchat
/usr/share/applications/io.github.Hexchat.desktop:StartupWMClass=Hexchat
/usr/share/applications/io.github.Hexchat.desktop:Exec=hexchat --no-auto --no-plugins
/usr/share/applications/mimeinfo.cache:x-scheme-handler/irc=io.github.Hexchat.desktop;
/usr/share/applications/mimeinfo.cache:x-scheme-handler/ircs=io.github.Hexchat.desktop;

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