Not only does this issue still persist in Android mobile version 8.8.0.21074-beta, it’s even more broken than before. In post #2 on this thread, I describe how to recreate the issue. When the app was in the background, PMS was still updated. This is no longer true. Whether the app is in the background or swiped away, PMS is no longer updated. The context is as follows:
The Upload content setting in the mode ‘As soon as new photos and videos appear’ no longer works. It is treated as if the mode was set to ‘Manually’ . When that happens, to upload new content, either the START button has to be clicked, or the Camera Upload switch toggled off and then back on.
This issue was first raised in the thread Camera upload not working (auto) - #4 by RandomFTW on 21 Jan this year. Since then, it’s been kept alive in this tread. During the almost nine months that has passed, my Pixel 3XL has gone through a major OS iteration from Android 10 to 11.