In the rich text editor:
@Ivlis
In a comment:
[Ivlis](https://chowlings.com/user/Ivlis)
For Names and Avatars:
In the rich text editor:
%Ivlis
In a comment:
[![Ivlis's Avatar](https://chowlings.com/images/avatars/572.png?v=1644063308)](https://chowlings.com/user/Ivlis) [Ivlis](https://chowlings.com/user/Ivlis)