How to reproduce:
1. Open project "KeyboardiOS15.zip"
2. Go to the Build Settings
3. Select iOS and build
4. Open the project in the Xcode and build for a device
5. In the application press the "Display Keyboard" button

Expected result: No QuickType bar
Actual result: QuickType bar is showing

Reproducible with: 2020.3.21f1, 2021.1.28f1, 2021.2.1f1, 2022.1.0a13
Could not test with: 2019.4.31f1 (Errors: "Assets/KeyboardManager.cs(4,19): error CS0234: The type or namespace name 'UI' does not exist in the namespace 'UnityEngine' (are you missing an assembly reference?)")

Notes:
- Reproducible with Xcode 13.1 but not reproducible with Xcode 12.5.1

Reproduced with:
VLNQA00392 - iPad (9th generation), 15.0 iOS

Not reproduced with:
VLNQA00358 - iPhone 12, 14.1 iOS
VLNQA00310 - iPad Pro 12.9", 13.4.1 iOS