What do you think Federate means? It absolutely does, Matrix Federates over the Matrix protocol, which is a separate protocol from Activitypub which is what Lemmy and Mastodon use. It doesn't Federate with Lemmy and Mastodon because they are different protocols but it absolutely does federate. Honestly there's no reason for it to Federate with Lemmy and Masotodon. ActivityPub isn't a good protocol to use for chatting, Matrix as a chat protocol is superior. Not to say that activitypub is bad, it's great for social media platforms like forums and blogging, it's just not good for instant messaging.
You ran into the trap of taking "fediverse" at face value. It neither invented nor monopolizes federation. E-Mail is federated and has nothing to do with the fediverse. Wikipedia's page on federation lists the very internet itself as the prime example.
Not implementing ActivityPub doesn't mean Matrix isn't federated.
how is that the point you were making? it seems like the opposite of the point you were making. i'm confused and i think i just don't understand what you're trying to say when you say matrix doesn't federate. because from one matrix server you can talk to other matrix servers, but from rocket chat, that's it, that's the end of the line. your server is your server
Rocket.chat implements the matrix protocol (or something else from matrix, check the other replies) to federate with other rocket.chat instances. It also had a different federation protocol before implementing matrix.
Activitypub and the matrix protocol are different things, they aren't supposed to interact with each other. Matrix servers using matrix implementations (synapse, tuwunel, conduit, etc) can interact with each other, since they are all based on the same protocol. Same way we do it, how AP servers with mbin,piefed,lemmy interact all with each other, since they are all based on the same protocol, too.
Revolt doesn't federate at all. They even admit this.I stand corrected on rocket.chat, they actually implemented the matrix protocol, so it's interoperable with matrix. See poVoq's reply
I think your last point is flawed, since even with multiple revolt instances; they don't interact at all. Which, is not federation. Matrix is federated, there's no other way to look at it and they're not comparable, and not meant to be compared at all.
actually implemented the matrix protocol, so it’s interoperable with matrix.
They originally planned this, but realized along the way that the Matrix specs are overly complicated and change at the wim of Element, so they ended up only supporting a link to Synapse via the appservice system, which isn't great as it means you have to run both Rocketchat and Synapse on the same server for it to work.
I'm not very familiar with the matrix protocol but rocket.chat advertises itself as having implemented the matrix protocol. What you said is also true according to their documentation, so now I'm confused about what is actually going on. Based on what rocket.chat implemented, is it wrong to say that they use the matrix protocol? And what are the limitations of their approach as opposed to a full implementation of it?
I guess i was taking the more generous route with the term then, I was treating capability to interact on the platform as federated which in hindsight doesn't make as much sense as in the normal context of it.
It doesn't? What's the telephone icon then on the linked screenshot? Or is it like only 1to1 calls instead of multi user rooms to join like discord/teamspeak u mean?
Oh, i see your edit now. I did a little testing, sadly this only applies to rooms with two people (including you) only, so it only functions like a normal 1:1 call (there's group videochat tho)
What’s the telephone icon then on the linked screenshot
If you mean my very top comment, there's no telephone icon :p I guess you mean that person symbol? Those are DMs :D
Or is it like only 1to1 calls
Yep
multi user rooms to join like discord/teamspeak u mean?
Also yeah sadly. If you're insistent on it, as i said mumble is a good choice; FOSS, not tied to one server. Here's a link https://www.mumble.info/