Using fingerprint authentication only for contactless payment (especially Google Pay)

I'm using a recently bought Samsung Galaxy S23FE. I mostly bought it because my previous phone didn't have NFC and couldn't be used for contactless payment. What I'd like to do, is to use the fingerprint sensor to authorize payments, and *only* for payments. I haven't found how to make either Google Pay itself or the phone's payment feature require fingerprint. The only thing I found is to have it require unlocking the phone (for which I _don't_ want to use fingerprints). So right now I have to type my unlock code everytime I use my phone to pay, which is much less practical than tapping my finger on the reader. Is it even possible to do what I'm looking for? If it is, how can I do it and what did I do wrong?