How to reproduce:

# Open the project "IN-66130_UntoDreamsProto"
# Open the “Proto-BasicCombat” scene
# Enter Play mode
# Observe the Game window

Expected result: The blur effect can only be seen at a further distance
Actual result: The blur effect is visible at close and further distances

Reproducible with: 2023.3.0a18, 2023.3.0b4
Not reproducible with: 2021.3.34f1, 2022.3.19f1, 2023.2.8f1, 2023.3.0a17

Reproducible on: Windows 11 Pro (23H2)
Not reproducible on: No other environment tested

Notes:

# A workaround would be to enable Compatibility Mode (Edit > Project Settings > Graphics)
# Reproducible in Player