I'm using the latest version of Adobe Premier Pro and the auto reframe effect is absolutely garbage for 9:16 which is basically the only reason you would use it. It does not keep the speaker in the center of the video and there is absolutely nothing else in the video. I was very excited for this feature but it is absolutely worthless.
p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post if it helps you get responses.