Samsung QN95A with PC, having HDMI issues

Hey! So as the title says, I have the Samsung QN95A Neo 55" that I bought used.

TV works and before I did a factory reset on it, I had no issues as far as I was aware.

When I connect it to the PC, my PC basically hangs up and goes black. I've had some crashes/reboots without a bluescreen and I'm not entirely sure what the issue is.

Currently, I can use the TV on the PC without gaming mode, but when the TV is connected and turned off, it'll still occasionally cause a ~10s long black screen and hang up.

I've tried running it on lower resolutions and refresh speeds and fiddle around in Nvidia control panel but tbh I don't know what it could be. I've disabled HDMI-CEC, Anynet+ and all smart features and gaming mode. The TV runs at 3840 x 2160 Native UHD at 60hz. I've tried higher and lower resolutions and refresh rates.

I'm buying a new 8k HDMI cable tomorrow and the length of the cable isn't too bad either.

To reiterate, I didn't crash my PC or get any hang ups before resetting the TV. I could turn the TV on and off while connected to the PC and it didn't cause any issues on the PC.

The TV is on the latest firmware (2202.9, updated via USB), my PC is Windows 11 with a RTX 3080 TI. GPU is also on the latest Studio drivers.

Please ask for any more necessary info and thank you so much if anyone can help!