No, I was replying to your comment. Using a BNPL loan is less optimal than paying with a credit card due to the cash back rewards.

People with good credit may use them, but it makes zero sense to do so. You always come out ahead by using a credit card and paying it off immediately unless the high yield savings rate is 6% or higher assuming a BNPL loan term of 3 months. Beyond that, it does make sense to use them, like Apple’s 12 month no interest on Apple products with the Apple Card.

I don't think a discussion of optimality is relevant to what I wrote.

Lots of people with good credit are not maximizing credit card rewards and sign-up bonuses, either. Humans are not homo economicus. (And just as a factual matter, there are sometimes longer BNPL terms than 3 months, which changes the math on what is "optimal.")