So in reality almost nobody cares about DC dimming.
But I'm with F3 and am affected from "shim".
For almost 1 year I'm with 14.0.5 eu ROM and it has DC dimming activated with a code *#*#3223#*# and after that it appears a menu in display settings for anti flicker mode. Have to do it after every restart of the device.
The problem is that in the next versions of MIUI, they again removed it and it no longer works.
Also in 14.0.5 I have huge notification problem and I miss a lot of important notifications no matter what I do.
Also Gpay is not working, but this is another topic.
In the coming days I plan to install 14.0.8 and a special kernel from xda (
https://xdaforums.com/t/kernel-overclocked-no-gravity-2023-08-28-protonclang.4531517/).
Which kernel it says that it supports DC dimming and you can activate it with the special app for the kernel. You have to read the xda topic to understand.
But I have no idea if it works or no actually, and if not, I'm back at 14.0.5 with the stupid notification problem...