You can put (copy) the video(s) to any location of your device and then set the correct path(s) to it (them) to the VideoPlayer.Source and request READ_MEDIA_VIDEO on Android 13+ or READ_EXTERNAL_STORAGE permission on Android < 13.
For example, if you put the video "myVideo1.mp4" in /Movies the correct path is:
file:///storage/emulated/0/Movies/myVideo1.mp4