If you ever store videos in Google Drive, they have always been a pain to deal with when trying to insert them anywhere else.
As of today you can now easily insert them into Google Slide like you would a video for YouTube.
Cool feature to this is that you can choose when to start and stop the video. You can also choose autoplay or even if you want it muted or to play with audio.
Just right click and choose VIDEO OPTIONS.
Be warned, if the people you are sending it to do not have permission to access it, they will be given a prompted request to access it.