How can one get 1-2 projects to prove to potential employers that they can do the job of a Product Marketer when their background is in growth marketing?
Growth marketing is an excellent background to segue into Product Marketing. Some projects you could consider showcasing to potential employers are:
Data-driven optimization projects: Showcase how your growth marketing background has influenced a specific "mico-funnel" or growth lever in a business. Bonus points if you're able to showcase segmentation by a specific persona, vertical, industry as prospective companies deeply care about targeting and personalization within the PMM profession.
Influencing internal stakeholders: Showcase how you influenced a change within the business from your past. This could be from drawing on qualitative of quantitative data, identifying an area of "red" that needs improvement, or unlocking a trend to invest more into. How did you influence the business to act on your findings and what were the outcomes? Highlighting your abilities to influence stakeholders is an important part of PMM and something businesses are keen to invest more into.