Steps to reproduce:

1. Open the attached "WebCamTexture-TestProject.zip" project  
2. Switch to Android Platform in File > Build Settings
3. Make sure that all Scenes are added in the Scenes in Build
4. Go to Edit > Project Settings > Player > Other Settings
5. Select GameActivity as an Application Entry Point
6. Build and Run the application on a device
7. In the application open "03_ Set FPS_Test"
8. Enter FPS into the Input field "Enter target FPS"

Expected: There is a button that lets to confirm input
Actual: The button that lets to confirm input is missing (replaced with new line button), it's impossible to set target FPS. Reproducible with all keyboard types (Numerical, Default, ASCII capable etc.)

Reproducible with: 2023.1.0b8, 2023.2.0a6
Could not test with: 2020.3.46f1, 2021.3.21f1, 2022.2.11f1 (GameActivity is not supported)

Reproduced with devices:

• VLNQA00467 - Galaxy S21 Ultra 5G (SM-G998B), CPU: Exynos 2100, GPU: Mali-G78, OS: 12
• VLNQA00460 - Google Pixel 6 (Pixel 6), CPU: Google Tensor (Whitechapel), GPU: Mali-G78, OS: 13
• VLNQA00230 - OnePlus 6T (ONEPLUS A6013), CPU: Snapdragon 845 SDM845, GPU: Adreno 630, OS: 9.0.0
• VLNQA00323 - Galaxy Note 10 USA (SM-N970U), CPU: Snapdragon 855 SM8150, GPU: Adreno 640, OS: 11
• VLNQA00090 - Samsung Galaxy S8 (USA) (SM-G950U), CPU: Snapdragon 835 MSM8998, GPU: Adreno 540, OS: 7.0.0
• VLNQA00500 - Google Pixel 7 CPU: Google Tensor G2. GPU: Mali-G710, OS: 13

Notes: 

• Everything works as expected if the Application Entry Point is set to Activity
• {color:#de350b}Once fixed reenable TestManualKeyboardInteractions::ValidateEnterKeyInteraction test for GameActivity in Tests\EditModeAndPlayModeTests\TouchScreenKeyboard\Assets\Tests\TestManualKeyboardInteractions.cs{color}