In the control center, when I press and hold the screen record button, this list of apps appears and you are able to tap them to assign the check mark. What is the purpose of this?
Well that’s new.
Those all appear to be apps that can receive videos, same for the list that showed up for me just now. So I would imagine that you have the option to save to photos or start a post/message with one of the other apps or attach the video as a file to a submission form.
One of my options is “My Verizon - Diagnostics.”