Ubuntu-based Linux Mint includes HexChat software by default "to offer
  a way for users of the distro to talk to, ask questions, and get
  support from other users," according to the Linux blog OMG Ubuntu.

  But in February HexChat's developer [1]announced its final release...
  That got devs thinking. As is, IRC isn't user-friendly. It's a kind of
  an arcane magic involving strange commands. Its onboarding is obtuse.
  And the protocol doesn't natively support things like media sharing
  (screenshots are useful when troubleshooting), clickable links, or
  other modern "niceties". And yet, IRC is a fast, established, open, and
  versatile protocol... It's free and immediate (no sign-up required to
  use it) which makes it ideal for 'when you need it' use.

  So work has begun on a new dedicated "chat room" app to replace
  HexChat, called Jargonaut. Linux Mint's goal is not to build a
  fully-featured IRC client, or even an IRC client at all. Jargonaut is a
  chat app that just happens to use IRC as its underlying chat protocol.
  Users won't need to know what IRC is nor learn its syntax, as Jargonaut
  isn't going to respond to standard IRC commands... When the app is
  opened Linux Mint's official support channels are there, ready to
  engage with. A real-time support chat app built on IRC — with
  additional bells:

  "[Jargonaut] will support pastebin/imgur via DND, uploading your system
  specifications, troubleshooting and many features which have nothing to
  do with IRC," [2]says Linux Mint lead Clement Lefebvre in the distro's
  latest monthly update. "HexChat was a great IRC client which helped us
  make a relatively good support chat room. We're hoping Jargonaut will
  help us make this chat room even better and much easier to use."
  "Like most of Linux Mint's home-grown XApps the new app is hosted [3]on
  Github," the article points out, "which is where you should go t to
  check in on Jargonaut's current status, check out the code and compile
  it, or contribute to its development with your own fair hands."

  The article also argues that IRC "isn't as trendy as Discord or
  Telegram, but it is a free, open standard that no single entity
  controls, is relatively low-bandwidth, interoperable, and efficient."

References

  1. https://hexchat.github.io/news/2.16.2.html
  2. https://blog.linuxmint.com/?p=4650
  3. https://github.com/linuxmint/jargonaut