[Kon5ole]

I don't think it will work very well as a "normal" monitor (meaning placed at normal monitor distance on your desk).

My 55 is borderline too big already, and the main issue is actually the height. Tilting your head or rolling your eyes back to see the top gets noticeably uncomfortable pretty quickly.

I made a special mount so the lower edge basically rests on the desk surface which basically solved that issue, but I don't think I could have made it work if it was any bigger.

Also at 65 the pixel density is much lower, so you'd probably want it mounted further away. But if you do, the monitor will cover the same FOV as a smaller monitor anyway.

My dream is that someone starts making 8K 50" monitors with displayport inputs (HDMI is a mess) and sells them for the same price as these tv's used to cost!