What is the difference between launch/join and async/await in Kotlin coroutines?

Hello! I started learning coroutines in Kotlin and got confused about two main approaches. When I write code, I see that I can start a coroutine via `launch` and then wait for its completion via `join()`. There's also `async` with `await()`. At first glance, they do the same thing — start background work and wait for the result. But I feel there is a difference, and it's important. Here's a simple example where I'm trying to load data from two sources and combine them. With launch/join I get this: ```kotlin fun main() = runBlocking { var data1 = "" var data2 = "" val job1 = launch { delay(1000) // simulate loading data1 = "Data from API 1" } val job2 = launch { delay(1000) data2 = "Data from API 2" } job1.join() ```