Mike Pestana explains that co-founders should avoid automatically splitting equity 50/50, as equal ownership can cause voting deadlocks and resentment when contributions differ. He recommends assigning clear control, basing equity on long-term roles and value, using four-year vesting with a one-year cliff, and discussing the Article: split openly before forming the company.
https://www.techstars.com/blog/founder-advice/how-to-split-co-founder-equity-the-right-way