There is a bug with the glow option when it is set very high at the same time as the HDRI is on full power.
The image is blurred.
DOF is not enabled.
I am attaching examples - crop 100% from a 4K image
01. GLOW set to 1, SKY Light Intensity set to 1
01. GLOW set to 0.3, SKY Light Intensity set to 0.5
Everything is fine in the preview:
D5 render 1.7.0.0272
NVIDIA Studio Driver 456.71
RTX 2060 SUPER