Signal has Maps?

Think link about the unofficial and open source version of Signal mentions maps in the official version. I have never seen this. What is it talking about?

Signal has messy history and some open source releases. Open source forks happen.

For example, I have never see Google Maps at all in the official Signal.

Hi, author of the fork here! I’ve updated its page to clarify: both official clients will only show maps on devices with Google Apps (GAPPS) installed in their ROM as they depend on that closed-source library. This may not be installed in third-party ROMs e.g. LineageOS – maps are blank in that case. My fork replaces it with the open source OSMDroid for an OpenStreetMap map, written by the talented Fumiakiy Yoshimatsu.