I am still on twitter but also use Bluesky and Threads for social media posts.
Messaging apps I use are Telegram and Signal. I have Snapchat but rarely use it. I uses SMS from Google from my phone. I had to switch to the Google app and away from my Samsung SMS because my boss has increase the use of SMS to communicate at work and when on my computer I am not looking at my phone and miss the messages. Google as a Messages for the Web which is the SMS version on the computer and syncs with my phone.
I use WeChat to stay in touch with a couple Chinese associates from when I lived in Shenzhen in 2015.
By bike ride group uses audio DIscord when we ride out bike trainers on the bike platform Zwift on which you can set up "Meet up" rides - we will all be at our own homes but our avatar riders are all on the screen at the same time.
Then of course there's the facebook messenger which I generally dislike and try to steer people from contacting me on it.
Regarding Discord I found this below- which makes me wonder if the other platforms you are using have caved to the Turkish govt and are providing information despite the fact most are encrypted.
article
Transport and infrastructure minister Abdulkadir Uraloglu said the nature of the Discord platform made it difficult for authorities to monitor and intervene when illegal or criminal content is shared. "Security personnel cannot go through the content. We can only intervene when users complain to us about content shared there," he told reporters in parliament. "Since Discord refuses to share its own information, including IP addresses and content, with our security units, we were forced to block access."
https://www.reuters.com/technology/turkey-blocks-instant-messaging-platform-discord-2024-10-09/