Reproduction steps:
# Open the user attached project
# Open “SampleScene” scene
# Go to the File → Build And Run
# Observe the blue square in the build

Expected result: The square has a bloom effect
Actual result: The square does not have a bloom effect

Reproducible with: 10.9.0 (2020.3.37f1), 12.1.7 (2021.3.7f1), 13.1.8 (2022.1.12f1), 14.0.3 (2022.2.0b3), 15.0.0 (2023.1.0a4)

Reproduced on: Windows 10

Note: The bug could be reproduced in HDRP and URP. To successfully reproduce the issue tested monitor should be HDR capable and HDR enabled in the settings of the tested OS (on Windows this could be found in the display settings). URP and HDRP versions are identical for each editor version.

Edit from Seb from original description: The issue is URP only and don't happen on HDRP. It looks like the users try to get URP bloom working when there is a HDR monitor. If I get it correctly, it could still mean there is something weird, as connecting a HDR monitor even if HDR isn't supported on URP should fallback on a LDR rendering and still have a bloom effect. So maybe it is the real source of the complain?