There is also lite.duckduckgo.com and html.duckduckgo.com for javascript free variants

It’s the thorn character

https://en.wikipedia.org/wiki/Thorn_(letter)

Bonus: In printing, the Y character was often used as a stand in instead of creating a dedicated thorn printing plate. So places named ‘Ye Old Shoppe’ the ‘Ye’ is actually ‘The’

To clarify things. Visual Studio and Visual Studio Code are two different things. Visual Studio is a full blown IDE intended to be run on Windows. Visual Studio Code is a glorified text editor out of the box that has plugins that help with coding in other languages like C#. On Linux you will want VS Code.