Auto place even after tiles have been filled. (layered)

I am using this extension on an Ultrawide screen 21:9. And I always want windows to open right and left.

I have it setup and it works partially. I use either 50/50 or 70/30 or something like that.

1. Empty desktop. Setting to auto place in the best location is active.
2. I open one window - it's placed on the right side, not sure why it detects the right side as best location not the left side but OK I can drag it over, and it snaps into the left side of my setup layout.
3. I open another app, and it opens on the right side, filling up my screen - great.
4. Now comes the issue: As soon as all tiles of the layout are filled up, the next app's just open in the center or wherever they last/normal position would be without the extension running.

What I would like to see is that tiles get auto placed the same way again on top of each other when the auto placement has filled up the screen. So I can switch apps on one side while the app on the other stays the same. I always have to drag windows and manually intervene so the auto placement is really only usabel for the 2nd app I open on an empty desktop.