It would probably take a lot of information to its grave, but the more known “servers” would probably get crawled by archive teams.
Also - assuming Discord wouldn’t be replaced by something equally closed off from easy public access - all new information would be easier to access.
When Discord started, they marketed it primarily as a voice chat software for gaming. I remember them marketing it as “superior audio quality to TeamSpeak” or similar wording (which by the way wasn’t the case). It obviously has chat, video chat and screen sharing conveniently built in which TeamSpeak is only starting to add now in 2025 with the TS6 beta (they seem kind of lost atm).
I always preferred the decentralized nature of TeamSpeak and Mumble though and at least from my own experience, TS tends to work better with fewer connection issues and better autogain and voice leveling.
I don’t like the fact that most people happily gave up decentralized voice chat for a centralized alternative and we still use TeamSpeak in most of my circles to this day.
Mumble, or maybe TeamSpeak 6 (they skipped 4, had 5 in beta, which now is 6 in beta, oh well).
Depends on what you want. We’ve been using a TeamSpeak (3) server I’m hosting for years, it works as well as ever (they added a couple of QoL features to the TeamSpeak 3 client during the pandemic as well).
TeamSpeak 6 supports persistent chat via the Matrix protocol and you can register to any server and use that to login to any server using federation (as it uses Matrix under the hood). They now added screen sharing so you got the features covered that most users would want. They unfortunately didn’t release self-hostable TS6 server yet (but they say they’re working on it) so you can either use an experimental TS5 server (uses Matrix but doesn’t support screen sharing) or TS3 server, which doesn’t support any of the new stuff. The TS6 client is backwards compatible though.
I just don’t think they actually know where they want to go with it yet. They seem to be advertising the whole decentralized thing as that’s clearly a differentiating factor from Discord, but on the other hand they didn’t exactly prioritize putting out easy-to-setup server software yet. The TS6 client pretty much fully supports TS3 servers including administration, but as far as I know TS6 servers are quite a bit different. There’s also “communities” that work with TS6 servers in some way. So it’s all a bit of a messy mix between legacy support and their attempt at creating a decentralized Discord.
I hope they get it together and release TS6 server software, find a good way to monetize their efforts and get people to use it.
Some people will say that you could just use Matrix directly instead, but if they manage to make TS6 easy to use and understand, allow easy creation of a server (as a service) and also allow full-featured self-hosting it could turn out well. Plus they have the brand recognition, at least with folks that aren’t that young anymore. This might help with adoption. Sure, it’s proprietary still, but it’s decentralized and uses open protocols (Matrix). You can apparently already join TeamSpeak community chats from your own Matrix server, so they aren’t artificially blocking “vanilla” Matrix servers from federating.