How to flatmap List in Coroutines Flow?

Question

Android

There is this method:

private suspend fun getPhotoFileList(photoUrlList: List<String>): List<File?> {
        return photoUrlList.map { downloadCarPhotoUseCase(it).first() }
    }

A list of strings is converted to a list of files. Can this be rewritten in a nicer way? Like flatmap in Rx.
first() is a method to get value from flow