No it stays active on mine even when I turn the camera off and remove the battery, it only goes if I change the picture style. I'm currently not connected to the app and the camera is remembering the last picture style used.
I love NAB, been more than a few times, but maybe it's my age and where I am in life, but the more stuff I see the more I'm starting to believe that the tech has maxed out for me. So I ask myself, when any semi-affluent middle-school kid has access to comparable IQ that I have, what's the point of chasing the best IQ? 12 stops of DR vs. 14 stops of DR. This color science vs. that color science. If not applied to a good story and a foundation of compelling shots, using the best isn't really much of an advantge. Love great new capabilities. It's exciting, but rarely do I leverage it in any similar exciting storytelling way. For far too long I've focused on playing with the cool toys in the sandbox. Ultimately, I'm thinking I would have been better off learning how to build a superior sandcastle. All one has to do is wander around Vimeo to see a bunch of decent looking IQ and lousy filmmaking. And god forbid you're on a film festival selection committee. So much stuff looks great these days, you're forced to sit through feeble storytelling until you realize the narrative isn;t going to say anything remotely interesting, is just a bunch of hoary tropes, and the story doesn't come close to matching the imaging. Dang near everybody has great IQ devices...and if they don't they will soon...even if they're not actively searching it out to acquire it. It will come with their phone, watch, eyeglasses, pocket drone, or whatever. For me it's time to ignore the camera and go back to the concentrating on ideas and story. That skill is truly where any advantage in this career will allow advancement.