I followed the install instructions in https://code.visualstudio.com, but when I write C# code, the IntelliSense suggestions don\'t pop up automatically, so I must trigger i
OmniSharp doesn't know where your project files are. In your screenshot, the left sidebar says "You have not opened a folder". OmniSharp will look in your currently opened folder for project files.
This should be enough for OmniSharp to start providing you Intellisense.