Reproduction steps:
1. Open the user's attached project "DoFRepro.zip"
2. Build and Run on an Android device
3. Click "NEW GAME"
4. Click the text which is displayed at the bottom of the screen

Expected result: The character is blurred and the background is not blurred
Actual result: The character and the background is blurred

Reproducible with: 2019.4.32f1, 2020.3.23f1, 2021.2.3f1, 2022.1.0a15

Reproduced with these devices:
VLNQA00078, Motorola Nexus 6 (Nexus 6), Android 7.1.1, CPU: Snapdragon 805 APQ8084AB, GPU: Adreno (TM) 420
VLNQA00288, Samsung Galaxy J7 (SM-J730F), Android 8.1.0, CPU: Exynos 7 Octa 7870, GPU: Mali-T830
VLNQA00391, Xiaomi Redmi 9A (M2006C3LG), Android 10, CPU: MediaTek Helio G25 (MT6762G), GPU: PowerVR Rogue GE8320
VLNQA00286, Meizu Pro 5 (PRO 5), Android 7.0, CPU: Exynos 7 Octa 7420, GPU: Mali-T760

Not reproduced with these devices:
----------, Huawei - (ELS-NX9), Android 10, CPU: NOT FOUND, GPU: Mali-G76
VLNQA00264, Samsung Galaxy S10+ (SM-G975F), Android 10, CPU: NOT FOUND, GPU: Mali-G76
VLNQA00001, Google Pixel 2 (Pixel 2), Android 11, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
VLNQA00316, Samsung Galaxy Note10 (SM-N970F), Android 9, CPU: Exynos 9 Series 9825, GPU: Mali-G76
VLNQA00225, Qualcomm null (SDM845 for arm64), Android 8.1.0, CPU: Snapdragon 845 SDM845, GPU: Adreno (TM) 630
iPhone 13 mini (iOS 15)
iPad 6th generation (iOS 14.4.2)
iPad Air 2 (iOS 11.0.3)

Could not test with these devices:
----------, Oppo Reno Z 中国版 (PCDM10), Android 11, CPU: NOT FOUND, GPU: PowerVR Rogue GM9446 (Project could not load)

Notes:
-Not reproducible on a Standalone build and the IOS build
-Not reproducible in the Editor with the Standalone and Android platform