A little confusion about JSON Path

Hello,

I don't understand why the following two JSON Path expressions aren't doing the same thing in Postgres 12:

with sample (data) as (
values
('{"k1": {"list":[1,2,3]}}'::jsonb)
)
select data,
jsonb_path_exists(data, '$.k1.list.type() ? (@ == "array")'), -- returns true as expected
jsonb_path_exists(data, '$.k1.list ? (@.type() == "array")') -- returns false - not expected
from sample;

Apparently "@.type()" returns something different then "$.k1.list.type()"

But maybe I simply don't understand how the @ is supposed to work.

Regards
Thomas