Question about asynchrony and Executor - When SuspendExecutor has called a suspend function, and is suspended, does that mean new incoming Intents are queued somehow until the executor is unsuspended? Or is a new instance of executor created to handle these intents?

Every intent is handled in a separate coroutine. https://github.com/arkivanov/MVIKotlin/blob/05d994d3b4bfd4e0211a376c42046141d933e1fa/mvikotlin-extensions-coroutines/src/commonMain/kotlin/com/arkivanov/mvikotlin/extensions/coroutines/SuspendExecutor.kt#L36 Does this answer your question?

Ah, yes. This is great. Thanks!