The feature that I missed the most after switching to signal was Live location sharing. It is just so convenient to find your friends while going out or going to the street exactly at the time someone is there to pick you up.
Too many people blame Matrix but I love it. It's UI is not as polished but hey I can work with it because sooner or later all these centralized apps run after revenue and ruin the most basic stuff that these app should do: messaging.
Which messaging apps have actual Live Location sharing?