I was using the GPU compositor feature. The glare setting is bit different in GPU compositor.
The YT videos are about the initial version, I have submitted it to Blender devs but they still don’t have time to do a proper review just yet.
BTW when it comes to layser representation in an image, it prehaps makes more sense to have a darker environment and have objects be illuminated, like how you would turn off the lamps when blowing birthday candles.