Say I have a frame handler and it needs to authenticate which I have a suspending function for. Would it better to use the authenticate function from a launch or from a runblocking?

Well that depends on your handler. Does it work synchronously or asynchronously? The former would needs

runBlocking

the latter

launch

.

handler is async, can you please explain more why use launch if it is asynchronous?

runBlocking

will block until all coroutines started inside complete

launch

will run the coroutine and run it asynchronously.

handle

in the meantime will return from

launch

immediately,