Ask any up and coming developer what they would like to do in the next year or so and you'll invariably hear, I'd like to become a Development Team Leader Hopefully most will have actually considered the change of role and be looking for new challenges and ways to contribute more to their chosen profession. However, for some this is an automatic response to a question that is particularly difficult to answer in an industry with no clear career path. For others it's simply a way to move up the pay scale.
For anyone who wants to go down that path — I recommend reading (or listening to) “Build” Tony Fadell:
https://www.buildc.com/the-book
Fadell worked in the R&D department of various companies you may have heard of such as Apple, Google, Sony, Philips, Motorola, Toshiba… as well as others you likely haven’t heard of (because they were moonshots that explode mid flight - one tried to invent an iPhone in 1990 when touch screens were shit, networking was wired, and batteries were disposable. Talk about ahead of it’s time). That failure wasn’t wasted - a lot of the mistakes they made were avoided years later when he was leading one of the teams that invented the iPhone (not from scratch, but by learning from past work).
He’s now basically retired and spends his time advising the next generation, but that book covers all the basics. It really is a gift to the billions of people who can’t ask an experienced product developer for advice. And if you are lucky enough to be able to ask, the book will give you enough knowledge to avoid asking stupid questions.