I don't think a lot of L4 and higher engineers at Google are very concerned about stack, that's what makes them the "MLB". At a certain point, the tooling shouldn't really be very important, it's the ability for someone to jump in on a problem and use critical thinking and efficient engineering methods to solve it.
Say what you will about Google, but I don't think it's a very controversial opinion to say they do hire a lot of the best software engineers, and they are very good at it.