Which FreeCiv? The one you install locally, or the one you play via browser on the Web?

https://freecivweb.com/

The latter has more, like Multiplayer 2.4 Dragoon, and Multiplayer 2.5 Elephant(in development), which weren't available locally when I last looked.

There is also https://github.com/longturn/freeciv21 which has an acceptable local client, and finally does not slow down so much when playing larger maps with many AIs, like both FreeCiv and FreeCivWeb tend to do.

https://longturn.readthedocs.io/en/latest/index.html

I tried that, recently, and barely espcaped a relapse. (Phew!)