Sharing a video brings up Googles custom share sheet. Which has EXACTLY the same options as the standard iOS share sheet. In fact, you can access it by tapping more. Why not just utilize the standard share sheet? Google. Stop trying to reinvent the freaking wheel. Its an iOS app - there is no reason to confuse people with non-iOS standard, and needless "features."
Nick Nestor about YouTube - Watch, Upload and Share Videos