Use multidimensional array as VALUES clause in insert

Is this possible? I have seen examples with array literals as VALUES
string, but I cant seen to get it to work with an actual array.

testing code

--This gets me a multidimensional array
with arr AS (
SELECT ARRAY(SELECT
ARRAY[fileid::text,tagname,array_to_string(tagvalue,E'\b')]
FROM tagdata_all) -- limit 100)
arr1
)
--Then

INSERT INTO tagdatatest2
SELECT arr1::text[] FROM arr --doesnt work only populates one column with
original array