Comment by alickz

I don't know if this will help you visualize it or not, but here's a photo of someone using a TV as a monitor on a desk

https://i.imgur.com/mjcqjfZ.jpeg

I use my 4K TV as a monitor (though from ~8ft away) and for me Windows' scaling (found under Display in Control Panel) allow me to easily read text from so far away

Maybe it could help you