Hello, I have the screen mentioned above and freesync premium pro has a huge problem on it, in fact the screen and windows does
not switch correctly to peak1000, it remains locked to peak400. other people like me have the same problem but with a different screen,
including the G8 (https://community.amd.com/t5/pc-drivers-software/freesyncpremium-pro-capped-to-400-nits-on-hdr-oled-...
it has received no response and I expect no less for me, I know that the problem will probably not get solved at all.
monitorunboxed has also testified to the problem with the amd gpu on the g8 model, but present on the g60sd as well and surely many other monitors with this certification of misfortune. video is called "Samsung Odyssey OLED G8 Review - Better with Nvidia"
have a nice day.