Screen flashing after the iOS splash screen

How to reproduce:
1. Open the “ReproProject.zip“ project
2. Open the “Load“ scene
3. Build for iOS
4. Open the “Unity-iPhone.xcodeproj“ project in Xcode
5. Build for a device
6. Open and close the instance of the app a few times (should reproduce in 5 times)

Expected result: No flickering when opening the app on the splash screen
Actual result: Flicker when opening the app on the splash screen

Reproducible with: 6000.0.61f1, 6000.4.0a4, 6000.5.0a6
Not reproducible with: 6000.0.68f1, 6000.3.9f1, 6000.4.0b9
Fixed in: 6000.0.62f1, 6000.4.0a5, 6000.5.0a7

Reproducible environment: macOS 15.7 (M4 Max), macOS 15.7 (M1 Pro) (Reporters)
Not reproducible environment: No other environment tested

Reproducible with these devices:
VLNQA00626, iPhone 16 (MYE73QN/A), CPU: Apple A18 Pro, OS: 18.5
VLNQA00416, iPhone 13 Pro (MLVA3ET/A), CPU: Apple A15 Bionic, OS: 17.6.1
VLNQA00535, iPhone XS (MT9F2ET/A), CPU: Apple A12 Bionic, OS: 17.6.1

Not reproducible with these devices:
VLNQA00232, iPhone 8 Plus (MQ8M2ET/A), CPU: Apple A11 Bionic, OS: 16.7.10
VLNQA00493, iPhone 14 Pro (MQ083PX/A), CPU: Apple A16 Bionic, OS: 16.3.1
VLNQA00491, iPhone 14 Pro (MQ083PX/A), CPU: Apple A16 Bionic, OS: 16.0
VLNQA00600, iPad Pro (9.7 inch, WiFi) (MLMY2B/A), CPU: Apple A9X, OS: 14.8

Notes:

• Not reproducible with macOS Standalone

• Reproducible with both Multi-Threaded rendering enabled and disabled

• Does not reproduce in the Editor

• Not reproducible on macOS Standalone with IL2CPP backend