SELECT index from trip_bill.bill JSON
Note: This query was made using ChatGPT, I'm not quite sure why and how it does what it does but it does work. Note 2: You have to use another simpler WHERE filter in conjuction with the JSON field WHERE filter, otherwise the query will take ages to finish and probably use quite a lot of computing power from the database.
SELECT
tb.index,
tb.uuid
FROM
trip_bill tb
WHERE
EXISTS (
SELECT 1
FROM jsonb_array_elements(tb.bill->'trip'->'route') AS route_elem
WHERE org_uuid = '0a4f0f4b-24b6-448f-907e-38237bb87698' AND
route_elem->>'booking_uuid' IN (
'6628233b-bbb1-4440-afe2-7c766a05447e',
'7c6f4d57-66c3-4bf0-97d9-88535365c211'
)
);