How to reproduce:
1. Create a new Project
2. Split off the Game View to a different monitor
3. Add Game View Window to the first monitor (Right-click "Scene" -> Add Tab -> Game)
4. Make sure both Game View windows are active
5. Create a Cube GameObject in the Hierarchy (Right-click in the Hierarchy -> 3D Object -> Cube)
6. Observe the Game View

Expected result: The 3D Object appears on both displays
Actual result: The 3D Object only appears on one display

Reproducible with: 2022.3.23f1
Not reproducible with: 2022.3.22f1

Reproduced on: macOS Sonoma 14.4 (M1)

Note: Both displays are of different resolutions. Going out of the Game view and back into it makes the 3D Object appear