How can I find the polygon and vertices count for all the objects in the scene in Blender 2.9? It used to be on the bottom right corner, but in blender 2.9, its not there. Here is a screenshot. The top screenshot is Blender 2.83, and the bottom one is Blender 2.9.
Check the 'Statistics' box in the Viewport Overlays to get those counts back, though in a different location.
If you need to see them at the bottom right of the screen you can enable the information using system > preferences, and in the interface section enable the information you want to view as part of the Status Bar