Discord does all this too? + the server rooms.
True that it is not very customizable. And yes it is electron.
They rebranded recently - https://discord.com/ Not very gamery
"Gamery" features like voice calls, video calls, videostreaming an application or videostreaming your desktop?? :D
Servers where you can talk/do/post whatever? And just drop in?
Now I use both but Telegram feels more like Whatsapp to me with 1 to 1 convos and Discord is more of the Teamspeak/Mumble philosophy where its a voice room/server.
I do like both the Telegram and Discord clients. I use both myself.
But I use it in a container tab in FF. I have uBlock Origin installed.
I don't trust the electron client to respect my privacy.
There is also a GEB reading server.
The fast.ai server.
Others are OSSU, Rust, MSFT Python, RL group, Yannic Kilcher, sentdex, Eluether.AI, Mark Saroufim's and Aleksa Gordic's ones, wandb, ConwayLife Lounge, Hugging Face, AI Art, etc.