Share your Roku suggestions or request a feature from the Roku team! Add a kudo to existing topics to show your support, or create a new topic for new requests.
The Roku app works well but it would be so much more useful if it supported iOS Shortcuts by implementing actions that could be incorporated into Shortcuts.
I found a (slightly roundabout) way to implement Shortcut actions that can control the Roku (and the TCL TV to the extent that Roku can). I used the iOS app Pyto and a few lines of Python. It works well.