I am one of the users who encountered Note 9 display flickering and discoloration issue. Today surprisingly Display of my device got back to normal so immediately I turned off adaptive display and switch to PMWfree brightness controlling App. So far ...
Bootloader version has been updated to 6, means now you cannot downgrade the firmware. Hope this update doesn't affect the devices which are working fine.
as of now many note 9 devices are facing display discoloration issue after march 2020 update. If your device is working fine do not rush for latest update, keep patience till they fix this issue entirely. If you want to take a chance then download in...
exynos is no match for snapdragons. With my personal experience I suggest, don't ever go with exynos series, they show their true colors after warranty get expired.