I used Trainerroad about ten years+ ago and I have returned to have another go.
I have used other platforms on and off and so thought I may be able to use one with Trainerroad.
Googling made me feel that doing this would not be possible.
I use an Apple TV box at the moment so I would need an Ant+ device to run Trainerroad and control the Tacx Neo then Power / HR would be bluetooth to Apple TV.
I have a Samsung S9+ phone and it appeared that Ant+ no longer would work on it.
I did see a way of pushing outdoor workouts to Garmin Edge and using that to control Neo.
Anyways. Today I did a test just to make sure I could Trainerroad with just the phone and Trainer.
Guess what. Ant+ control showed up which I selected, then strted up Rouvy and unselected Controllable.
Everything worked fine. Phone Any+ controlling Neo and Neo Power and HR going to Apple TV via Bluetooth.
Unexpected happy result.
PS I have pics but don’t know how to post them.