I don't quite agree with this table. Please consider the following code.

constant term:<$container> = 1,2,3;

say $container, $container.WHAT; # (1 2 3)(List)
say "answer: $container"; # answer: 1 2 3
dd $container; # (1, 2, 3)
               # note the lack of naming of the container

sub s($first, *@rest){
    dd $first, @rest;
}

s($container); # $(1, 2, 3)
               # Array element = []
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Here, $container is not a container. It is a List of Values and also a scalar. In quote interpolation it is handled like a list but in a signature as a scalar. In plain Raku (not in a signature, not in a quote, regex, etc.) '$' may not indicate Scalar.