Will extension constructors allow member-init expressions?

[Bretttt]

After reading about proposed/planned extension members here:
https://github.com/dotnet/csharplang/blob/main/proposals/csharp-14.0/extensions.md#constructors
I'm wondering if an extension constructor will be able to be used with a member-init expression, for example:

public interface IFoo
{
    public int Bar { get; set; }
}
public static class Extensions
{
    extension(IFoo)
    {
        public static IFoo() => new FooImpl();
    }
}

IFoo foo = new()
{
    Bar = 1,
};

Thanks.