How to use CRT as extra monitor?

I have a Triniton Wega (480i) that I’d like to use as a separate monitor for streaming VHS rips and pixely PC games. My computer is a Win11 machine with a 2080, and I just tried usb-c output of the 2080->hdmi->component converter->TV and (to no one’s surprise) it didn’t work. I used Nvidia’s custom resolution to use...