For a open source project like the above which has so many constant moving parts, a discord is probably a good idea to ensure the author of the issue can provide more details about their problem and respond to follow up immediately.
Because I can absolutely see a breaking change involving something outside of the open-source project itself.
I say that as a person who hates discord. But I’m also part of the older generation so waiting 3-9 months for a reply is kinda normal. And the projects I support, it’s pretty common to make a merge request that finally gets approved a two years later.