For checking the transcript: https://www.buzzsprout.com/2379282
Remain in the shadows
When someone remains in the shadows, they stay unnoticed or unrecognized for their efforts, talents, or deeds.
Examples:
1- Chiune Sugihara remained in the shadows for years, even though he saved thousands of lives.
2- The artist worked tirelessly for decades but remained in the shadows until a major exhibit showcased her work.