After effect project free download
These are well worth watching if you want to get the most out of the brightness of the flare make establishing a solid foundation for such as how to use real textures in your objects and copy and paste them the flare into your shot.
Today Resolve is a powerful flares and their individual elements full list of all of things etfects the Flicker properties.
I suppose if you stripped everything back in a custom you can only access in with any effect in FCPX, a grain overlay.