A new IRC client (but don't call it an IRC client) is being developed by Linux Mint. The Ubuntu-based distro currently includes Hexchat in its default

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Linux Mint is developing a new desktop chat app called Jargonaut that uses IRC as its underlying protocol. The app aims to be a real-time support chat app with added features, making it easier to use and more versatile than traditional IRC clients.

Linux Mint is Building a New Desktop Chat App