QFLED lights up on Aorus Pro, why?

Amber QFLED sometimes lights up randomly in my Aorus Pro x570. The manual says only the following “The QFLED will flash when the BIOS matching and flashing activities start and will stop flashing when the main BIOS flashing is complete.” I am not updating bios or doing anything at all, and the light is not flashing it stays on until I reboot. Then it mostly stays off.

Well, piece of electric tape would “fix” this, or just looking away from the thing.

But makes me wonder, what would that LED signify other than the BIOS flashing.