ArcGIS Pro gives users the following options to open new windows:
- Docked below the active map—This is the default setting for table, chart, and video views.
- Stacked on top of the active view—This is the default setting for ModelBuilder and notebook views.
- As a separate floating window—The view opens in a new floating window. By default, additional views of the same type are stacked in the same window. To open each view in a new window, uncheck the Stack additional views on top of the last active view check box.
Docking to the left, right, or above the active map should be options here.
Personally, I always dock to the right of the map. It's not a big deal to switch it manually, but there are often times this feature glitches out and the docking location selector does not appear, in which case I need to close and re-open the map to be able to dock a window elsewhere.