Everything has to be a test early on, but not every test has to rely on random-split-based statistical significance to make a decision. “Would you pay $20 for this?” is a classic way to judge whether your service has product-market fit, and it’s not about sample sizes, not initially.
Some growth teams are trying more exploratory approaches to find something that resonates with simpler approaches. Others rely on A/B tests. Different profiles, but both are “Growth teams”.