It is probably gonna be more complicated than GUI calling CLI Stuff, but the CLI should definitely be able to do all the major things for sure.
Yeah that might be a nope for me too, though a dedicated News Feed kinda thing should still be doable. Maybe based on RSS.
Ingame Wiki Stuff would probably be able to conjure up a Browser Window with the regular Community Wiki by clicking Links and Stuff.
Ingame Chat will be Matrix/IRC Compatible, so not really a Launcher thing.
As for Discord and Twitch, both of them are utter garbage and I would never work with either of them.
Good luck explaining the End User what Symlinks are though, if they need em. Because that sure as heck is not part of the File Explorer.
GT6 does it really badly right now, there is better ways to display Tooltips (see Factorio when you hover over something in the World) and additional Information about things.
yep, that and just opening the “Context Menu” of sorts and clicking on Open Wiki Article. 