Quick answer: Godot 4 debug Android build flooding adb logcat with Vulkan validation messages? Validation layer enabled by default in debug; disable for cleaner logs.
Mobile debug session: 5000 lines of validation per minute; can't see actual errors.
Disable validation
Build template excludes the validation layer. Re-enable for specific debug runs.
Or filter logcat
adb logcat -s godot:* filters; less effective.
Configure logger
Project Settings > Vulkan > Use Validation Layers off for release-style debug.
“Validation is verbose. Production debug shouldn't be drowning in validation.”
If your Android debug logs are noisy, validation is usually the culprit. Disable for production-like debug.