Productivity modules affect the fluoroketone recipe component causing a net gain. This is inconsistent with most other fluoroketone uses. I propose that the recipe prohibit productive returns of the catalyst whilst retaining gains on the main result, Purified Deity Flesh.

i dont know if there is a way to split what prod effects in a recipe, are you suggesting that the fluid output be lowered? Or just ban productivity on the recipe all together?

https://lua-api.factorio.com/2.0.60/types/ItemProductPrototype.html

i believe you can define part of the result to be subtracted with ignored_by_productivity flag.

i know SE was able to do it for coolant