https://us.community.samsung.com/t5/LED-and-OLED-TVs/Display-blinking-when-connected-to-PC-via-USB-C-to-HDMI-2-1/m-p/3152720
Solved: Re: Display blinking when connected to PC via USB-... - Samsung Community - 3142261
Feb 24, 2025 - The cable matters usb c to hdmi cable fixed the issue for me. https://www.amazon.ca/Cable-Matters-HDMI-Support-240Hz/dp/B0CT6CK72N - 3142261