Some of the key features expected by Discord users have yet to be prioritised (game streaming, push-to-talk, voice channels, custom emoji, extensible presence, richer hierarchical moderation, etc)

Unless the servers can have separate channels and interface like slack or discord then it's not going to work for most people. Correct me if they have implemented this. I tried using it for quite a while and it was just clumsy. Most people want/need a server with channels that can have categories

Some things to keep in mind if you're getting started with Matrix after having been on Discord:

End-to-end encryption is available, but you might want to disable it when you create a room. This will help keep things simple for your users as they get familiar with Matrix. Connections between client and server will still be encrypted using HTTPS, which is the same level of encryption that Discord has. (And if it's a public room, e2ee wouldn't have any value anyway.) You can always add end-to-end encryption to your rooms later.

A few terms used on Discord are different in the Matrix ecosystem...

| Discord term | Matrix term | |

|

| | channel | room | | server | space | | discord.com | homeserver (there are many) |

If you don't like the first Matrix client you try, consider trying others. Much like email clients, the features and user interface styles vary. The blog post mentions Cinny and Commet. Element X is probably the simplest mobile client with Matrix's recent fast-startup feature (though it's still catching up on other features). More clients are listed here.

Voice and video chat in Matrix are currently available only on some clients, and it's done by integrating Jitsi. Not ideal, but still useful for at least some use cases. A better system is in development. Here's a preview of it: https://call.element.io/

Matrix.org is by far the largest public homeserver. It's convenient in that anyone can get an account without having to run their own homeserver, but it can also suffer slowdowns when an influx of users are arriving all at once, such as right now. You can choose to be patient, or look for a different public homeserver, or pay for a homeserver host, or (if you have the means) self-host.

Matrix.org and some other public homeservers ask for an email address when you sign up, so that they have a way to recover your account if you forget your password. It's not required by The Matrix protocol, though, and some servers might allow new accounts with no contact info at all. I don't know which ones; you'll have to hunt for one (or run your own) if that's what you want.

The blog post mentions account portability, which is not yet available in Matrix. This means that your user ID (@user:example.com) is currently tied to the homeserver where you create it (example.com). If you decide to switch to an account on another homeserver, you'll have to get re-invited into any private chats you had joined with the old account. However, the rooms you create on your original homeserver are not tied to that server. So long as at least one room member is on another homeserver, the room will carry on (with its original ID) even if its original homeserver vanishes. This means, for example, that you could create a room on matrix.org today, and migrate its admin duties to an account on your own private homeserver that you set up a year from now. (Or even invite all your members to migrate to your private homeserver.)