Looks like your wish has come true! Dex now supports 2160p60 on One UI 5 (Android 13).
Thank you so much and also to Helenna who delivered your voice and the Devs who worked on making it possible.
I finally upgraded my Fold 4 to android 13 and One UI 5.
So, I tried connecting my fold 4, either wirelessly or USB, to my notebook with 4K's screen. However, I saw that the resolution is locked to FHD! Even selecting the Multistar's module item that allows extending the resolution of external screens.
Have any of you been able to use Dex in 4K?
I have the same problem with my S21FE, doesnt work. Stays at FHD (seen in the DEX info on the phones settings). Also tried the multistars option to force higher resolution, does nothing. I am connecting my S21FE to a 4k laptop via usbc cable (high data usb c cable 10gb/s) running DEX on Windows 11. Doesnt work.
Thanks for nothing I guess Samsung. My theory is, that they forget to also add support for DEX over usbc, and it might just work over HDMI?