Comment by kevinr

There is a Linux desktop client, although it isn't mentioned on the front page with the other clients.

From https://zulip.org/clients.html:

> There's a Linux client, but we don't have binaries posted yet. We hope to have a PPA setup soon.[0] In the meantime, you can clone the git repo[1] and build from source.

[0]: https://github.com/zulip/zulip-desktop/issues/1

[1]: https://github.com/zulip/zulip-desktop

It's mostly a WebKit wrapper, just like the Mac and Windows clients, but it does provide an icon and a dedicated window and potentially better integration with system notifications etc.