Steps to reproduce:

1. Open attached project
2. Open scene "scene"
3. In game view, make sure that Maximize on play is checked and enter play mode
4. Run scene and notice output in the game view - it shows that ViewportToWorldPoint value is same after Screen.width is changed and only updates in the next frame while Screen.width is updated instantly

Note: doesn't happen when resizing game view BUT happens when game view is resized by resizing whole editor. Only reproducible on editor

Reproduced with: 5.2.4f1, 5.3.6p3, 5.4.0p2, 5.5.0a6