Might be worth it to find out if your brand of peanut butter contains palm oil (many do).
INGREDIENTS: MADE FROM ROASTED PEANUTS AND SUGAR, CONTAINS 2% OR LESS OF: MOLASSES, FULLY HYDROGENATED VEGETABLE OILS (RAPESEED AND SOYBEAN), MONO AND DIGLYCERIDES, SALT.
Oh, maybe molasses (and yes probably the salt) is the flavor note I'm hung up on.
Anyway this is such a pure food-industrial-complex product that I am sure the ingredients list amounts to a sort of cover story. FWIW the parent company scores rates just OK on the 'Palm Oil Scorecard' from your linked page: https://palmoilscorecard.panda.org/check-the-scores/manufact...