To reproduce:

1. Create an empty project (Or open the attached one);
2. Switch graphics API to Metal in the Player Settings;
3. Build and run a Standalone in Fullscreen in 800x600 resolution;
4. See that the logo is displayed close to bottom right corner while it should be displayed in the center.

Note: Logo changes place depending on resolution.
Note2: Only happens with AMD GPU.

Regression introduced in 5.5.0a1

No reproduction on 5.4.0b25, 5.4.0b16, 5.3.5f1
Reproduction on 5.5.0a1, 5.5.0a3.