I’ve also had horrible experiences with the Google Play people. Will never consider publishing on that platform again, huge waste of resources and personal time.

Fortunately PWAs are a thing.

Not an expert on any of this, but wouldn’t already published content (public or proprietary) such as Youtube videos, audiobooks, tv interviews, movies, tv programs, radio programs, podcasts, etc. be useful and exempt from privacy concerns?

Do user collected clips have soemthing so special to the point that it’s critical to collect them?

Movies etc would need to be transcribed accurately to be useful for training and even then just provide a single sample for the specific item.