I'm sure this issue exists with other models but I have the Q8FN 55 inch. I think its easy to say like 99% of the time the source info is wrong. I have a PC on HDMI 1, xbox on HDMI 2. The main issue is when using HDMI 1 and HDMI 2 for example, the source info will never show the resolution, show if HDR is on, and the name doesn't update. I could have the screen on HDMI 2 and playing xbox, the source info will say "PC". I know for sure the only way for me to get this TV to display the PC source info properly is if I have turn on the computer before turning on the TV. Switching to xbox or another HDMI source on the fly never updates properly.
I guess this was never fixed? Kind of ridiculous.