This was called the TLM role at google. Technical Lead/Manager. You were expected to code and manage a couple of more junior engineers. It’s part of an effort to have dedicated managers and dedicated engineers instead of hybrid roles. This is being sold as an efficiency win for the sake of the stock price but it’s really just moved a few people around with the TLMs now 100% focused on programming.
Some TLMs have been moved into people manager roles, it is not a move that brings the most joy vs just getting to be a TL without M again.