Sam Flow Part 3 comes from TikTok, where short audios are labelled by series and part number so viewers can follow a creator's ongoing run of clips. As the third instalment, it spread when editors reused the same audio across their own videos, helping the series stay recognisable in feeds built around trends, transitions and short edits. Its continued use comes from that familiarity: people already know the flow from earlier parts, so the new clip works as a quick signal that a series is continuing rather than starting from scratch.