I imagine a world beyond proprietary software, and GNU/Linux is the most promising implementation of that.
I don't agree with reducing software-freedom to an issue of mere privacy-friendliness. I'm willing to be realistic about the security shortcomings of Libre software but not if the alternative is locked down silos and walled gardens.
Being a free software GNU distribution is also the point of Guix, and it's part of what attracted me to it (although its practical abilities are nice as well).
You're being heavily downvoted because this instance is "a community of free software and privacy enthusiasts" as the title on the front page suggests, and this in particular is the [email protected] community. Discord is the complete antithesis of this, as it is a proprietary application locked to a centralized server that also spies on its users.
What is wrong with Discord (Richard Stallman)
Spyware level: Extremely High (Spyware Watchdog)
That being said, there are modern alternatives to IRC, such as Matrix, XMPP, Zulip, Mattermost, or RocketChat. However, I think IRC is fairly good at what it does.
Arrested for felony possession of cuteness
Sentenced to 30 minutes of snuggles