Oh to be young again. I use a 43" Samsung TV at 4K. That works for me. The 32" 4K monitor next to it I run at 2560x1440, you know, so I can read it...

You need to increase UI scaling, not turn down the resolution. All modern desktops support this in some form. I would only lower the resolution if the GPU can't keep up in games after exhausting all other options such as AI upscaling.