Interviewed by four different people, starting with devs and ending with the development manager.

A typical "technical" coding question was to implement a stack.

Those types of questions are no longer appropriate. When was the last time you had to implement a stack collection from scratch?

Object-oriented design and decomposition questions are much better, but they only asked technical questions.

Implement a Stack. Last time I had done that was around 1992, but I was still able to code this from memory. It was a stupid question, revealing nothing about my ability to solve problems and code solutions, given that no one ever implements Stacks by hand anymore.

Second interview asked to implement a function that returns true/false if a binary tree is well-constructed.