Use free software messenger that works for you. You do not need to use one that does not. By free software it means the program that runs on your own computer or device. There are several choices among many choices I presented to you here to choose. All choices mentioned below feature file sharing as well as voice and video calls. Consider your friends and family and trying out a messenger together with them may help a lot.
Multidevice Choices
Telegram (GNU GPL) fast and full featured messenger.
Signal (GPL) secure and private messenger praised by many.
Wire (GPL), Switzerland privacy messenger for teams, phone number optional, awards winning.
Threema (AGPL), Switzerland professional privacy messenger, phone number optional.
Movim (AGPL) a user friendly messenger as well as blogging and social media.
Element (Apache), United Kingdom successful mass messenger.
Jami (GPL), secure serverless cross platform messenger.
Decentralization Choices
Movim, explained above, the XMPP client.
Element, explained above, the Matrix client.
Conversations (AGPL), the Android app for XMPP network.
Jami (GPL), explained above, the GNU operating system’s messenger.
Serverless Choices
Jami, explained above, a truly peer to peer messenger and SIP client.
Afterwords
You need productive communication so use libre software messenger that works. Don’t let your libre software choice be disturbed by anyone else who demand you switching to their choice — otherwise, you will be productive in changing instead of communicating. About software licenses above, learn quickly and effectively from GNU’s Various Licenses. About choices not mentioned, we can expect good things from 
Delta Chat, 
Session and 
Tox (all GPL). I hope this would be useful and see you next time.
This article is licensed under CC BY-SA 3.0.