"Full Stack" expertise has little to do with STO. To me an STO is on a broad topic such as "Owns this {thing}" etc. It's great to have varied experience because

"Full Stack" expertise has little to do with STO. To me an STO is on a broad topic such as "Owns this {thing}" etc. It's great to have varied experience because you can add that to the debate on what the right next action is. Now all this said my job has quite a bit of technical details related to it and the fact that I've hacked stuff up and down the stack and ran companies while also having been a customer in this industry is super useful to my focus. In that respect, I would always encourage people to learn as much as they can and understand the customer's perspective as if you lived it every day.