I configured iTerm2 to show badge on the right-top corner to see the development context. It's working well in iTerm2 but not working in VS Code.
Of course, I changed terminal app in VS Code user settings but seems it's not applied on integrated terminal.
Any solution or workaround for this?
VS Code's integrated terminal uses xterm.js. As far as I am aware, there is no such thing as "changing terminal app in VS Code user settings". You can change terminal profile, but that mostly has to do with what shell is used, and a shell is not a terminal. As far as I am aware, neither VS Code's integrated terminal, nor xterm.js which it is built on support iTerm2's badge feature. If you want such a feature, you'd need to raise a feature-request issue ticket.