He Who Remains shouldn't remain any longer - he's dead. Except our trip to the TVA showed us that - he probably isn't.
He was responsible for creating the TVA and for creating this pocket dimension too. Studying the frequencies emitted by our universe, its various readings, have shown us that there's no danger of it branching - it's not going to go into red line territory like other timelines would have, the ones that needed pruning. However, the activity within shows that we're all kind of being moved around like chess pieces, and the universe is one big game board. I think Tony called it a video game - it's kind of like that.
As someone who was recently hit with a lot of hard truths and a lot of uncertainty about what to do with them, I realize that all of this may be difficult to handle. But I'm here to answer any questions, or go over any of the output from our trip to the TVA. I've got the files saved on my TemPad and can pull them up for any interested parties. But I just wanted to be truthful about everything, because I know we were all confused and confusion often leads to some bad stuff sometimes. Hopefully this will cut it off at the pass.