I have elderly clients who are always on the go being the boss owners they are and they need a simple way to view captions, the "more" button at the bottom if not clicked on directly can play the video and starts to get conflicted with the caption being opened. It gets frustrating for them sometimes and not ideal when i have a small window of time to get their attention and need seamless approvals. Maybe having the captions separate and easier to see. Would also be nice to have the feedback chat feature easy to see as an option for people click into it's hard to find it. Either both Captions and chat feature could sit right underneath or above the post mockup? making an easy first glance yes or no from the client side.

PS also putting a play button over the videos that are suppose to be videos would help to indicate that they can tap on it.