I'm going back and forth on what my new little one actually is. I'll leave out my guesses for now to not "poison the well." It was a freebie from a live auction app and I can't get an answer out of the source! Let me know if you need any info or pictures from another angle.
Today the app changed how it works for me (or no longer works for me) but not my buddy. I used to be able to be watching a seller in their room, and click the back button and check my Activity while the room went to picture in picture. Also, I could be in a room, put my phone on lock mode - and when I came back 5+ minutes later I'd still be in that room. Not any more. It takes me back to the Home screen.
Why did it change for me and not my buddy who also uses the app like I do. A lot of time checking different rooms entering giveaways and only infrequently buying. But we've both made purchases before.