So uhhh, haha. HDMI reduced the number of options I have. The best the game can do now is 1440x1080 xD
So I don't think changing the cable really helped much here.
EDIT: However, changing to Windowed (Fullscreen) for the display mode actually makes my game run at native resolution (for whatever reason). This was not something that happened before with the previous cable. I will note that I am not exactly satisfied with this due to the cable itself limiting the refresh rate of my monitor to 240hz.
EDIT 2: I switched back to the old cable and the Windowed (Fullscreen) display mode runs at native resolution. What a strange fix? I'm not super confident in it and I am hoping I don't experience any input delay with this display mode like I have in the past. I do know Windows 11 has worked to reduce the latency as much as possible but eh what can you do.