What's even worse , is that your manager is not aware that you are spending the first hours of your day troubleshooting other's problems and answering questions.
In the office environment the junior dev will come to your desk and everyone sees it, in the remote work he will ping you privately because he is too shy to ask it in the general chat...
Allowing only public chats will not help but just pollute the general channel of communication.
If I get email questions from a junior dev, I try to cc my boss when I respond, just to keep them in the loop and make it clear that I am spending some cycles helping him or her.
Allowing only public chats will not help but just pollute the general channel of communication.