Te 4k120 fpsow to wychodzi że w wielu urzadzeniach nie działa, od najnowszych kart po amplutunery
https://hdtvpolska.com/planujesz-zakup-amplitunera-pod-ps5-xbox-series-x-lub-nowe-karty-nvidia-porty-hdmi-2-1-nie-dzialaja/
https://www.audioholics.com/news/bug-in-hdmi-2.1-chipsets
A bug discovered in the chipsets of Panasonic, Denon, Marantz and Yamaha HDMI 2.1 AV receivers, has resulted in 4K, 8K and HDR 120Hz passthrough issues on PS5 and Xbox Series X