Do you have a specific timestamp of him advocating for the use of nicotine? From the description and timestamp chapters this seems like a fairly reasonable episode on the effects of nicotine in the brain, which, given the topic of the podcast seems in his lane. It even dedicates a decent portion of runtime to quitting smoking and vaping, even though that isn't really on topic.

This alternate link to the same site seems more attuned to what you just asked. (Not going to listen to it all myself...life's too short, then you do or don't get forgetful!)

https://ai.hubermanlab.com/s/dqcKio7m