Hi – could you take a look at this thread? Unity Extension Does Not Support Anysphere C# Language Server Some others have reported that DotRush works well with Unity projects.
I also see that you have the MSFT C# and C# Dev Kit extensions installed. These are incompatible with the Cursor C# extension, and could also be contributing to to the “jump to class” and “go to definition” not working. Could you uninstall these extensions?