My goal is to get to this level someday, so I would love to understand more. In particular, how does this dynamic play out at Big Tech/larger tech companies?
Both TLs and managers have a role in setting the direction for the team. The TL is more focused on technical innovation, while the eng manager is more focused on the people (resourcing projects effectively, and ensuring that they are impactful while also growing their career).
Big Tech vs. Smaller Companies