Would like data be transformed before it's return from query api, this help to create data masking or remove sensitive information from APIs return
Hi @zgfeedback! Thanks for sharing your feedback 
I'll share it with our team. Would a query transformer work for the time being? The return value from the transformer you write becomes the value of yourQuery.data in the rest of the app.
Access & customizability is likely dependent on the API, but ideally, you would be having your backend only return data that you are comfortable having available in the user's browser since the return is sent there to be processed with JS (such as transformers) and rendered to the user.