When I type a message on MacOS, about a couple of days ago, the key combinations Shift+Return(newline), Option+Return(newline), and the up and down arrow keys to navigate through lines stopped working.
Also, the Return key does not work - to send a message in the chat.
In other programs, these combinations work. I didn't change anything in the computer settings.
I use web telegram at this address https://web.telegram.org/k/
Browser: Safari 15.4 on macOS
Telegram Web 1.4.3 K, Safari 15.4