An essay Gibson Biddle wrote (titled 'Hacking a Product Leader Career') that describes how he interviews product candidates at every seniority level, from IC PM up through VP/CPO. In practice it functions as a checklist: for each level it lays out the kind of questions to ask and what a strong vs. weak answer looks like, extending techniques like the Product Sense Interview Technique (Favorite/Hated Product Test) into a level-differentiated interview loop. Related to Biddle's Career-Hacking Typology: Starters, Builders, Super Scalers career framework, which addresses career trajectory rather than interviewing mechanics.
When building a hiring loop for a product role, use a leveled, checklist-style question set matched to the seniority of the role, rather than asking every candidate the same fixed script.