Got about 12 meters from my PC to my living room, want to hook up my PC to my LG OLED, but i have read about singal loss/degarding quality with longer hdmi cables, would me buying a active repeater and two shorter cables be perferable to one long? main goal is to output at 4k without signal loss.
Do you have the HDMI 2.1 TV? I think you will need something that is fiber optic (https://www.amazon.com/CableDeconn-48Gbps-Supports-HDCP2-2-Projectors/dp/B00V7NNVJG?th=1). Basically, I think you want a cable that can do 8k/60 or 4k/120 Hz and you should be good.