I've read the other post here Add videos to Lightroom Mobile on Android
Until that feature is implemented which allows Lightroom Mobile to upload videos from Android phone, what are some workarounds to get my android videos into Lightroom CC Cloud so that they will sync up to Lightroom CC desktop?
1. Download video files from Android phone to computer
2. Use 'Any Video Converter' (free and excellent) to convert, choosing Apple iPhone 7 Mpeg as your output format.
3. Import converted video files into Lightroom Classic CC and you're on your way!