Solution explorer doesn't show source generated files

Describe the feature you'd like

With the following code:

using System.Text.RegularExpressions;

namespace SG;

public partial class Class1
{
    Regex r = MyRegex();

    bool Test(string s) => r.Match(s).Success;

    [GeneratedRegex("abc.*")]
    private static partial Regex MyRegex();
}

I can see the generated source in VS

However it is unavailable in VS Code

Alternatives considered

Use Visual Studio is one alternative.

Environment Information

Windows 11
VS Code 1.81.0
C# Dev Kit v0.4.2