PM: four 1-hour calls with PM, CEO, CPO and CTO; questions felt too generic, no follow-up

The process included 1 hour calls with PM, CEO, CPO and CTO. The questions and discussions were too generic. No update from them once the process was over. Nothing was on the email to start with. Questions covered how you work with engineers and a "design an app X for Y" product prompt, plus general chitchat with many folks. The candidate felt it wasted their time and received no communication after the process ended.