Having had a quick read of the concept, I believe it's concurrent in the sense that Promise.all() is compared to awaiting in a for loop? In other words, put on

Having had a quick read of the concept, I believe it's concurrent in the sense that Promise.all() is compared to awaiting in a for loop? In other words, put on the stack at the same time but not a different thread. Do correct me if I misunderstood though.