Which NEC commercial display do you have? How do you like it for normal TV duties? What tradeoffs were you willing to make when you bought it compared to the features which were available in consumer-focused "smart" TVs?

MultiSync P495, with the additional daughter card for the RPI CM4.

As far as regular TV duties, the CM4 running libreELEC does everything I need and then some. The HDMI-CEC was flaky at one point, but from my research on it regular consumer TVs suffer from the same problem. If anything I'm more limited by the CM4's output, less the display itself.

Tradeoffs: I wanted to control my stack with minimal cabling pretty much everything else be damned, and this was a nice integrated solution and a excellent alternative to just buying a 43" dell monitor to hang on my wall. There are probably some image processing "features" that videophiles can comment on, but I've been used to literal decades of LCDs at this point, so an IPS display is going to be just fine(tm). Display lag is a bit higher than I would like for retro video games on it, but that's more an overall LCD problem, less a specific display issue.

In functionality it's much closer to a computer monitor than it is to a TV. The menus are obtuse, brutalist even, but if you ever had to work in IT and set up a conference room display you will feel right at home.

It's also a heavy pig compared to consumer televisions, right on the edge of what my mount is able to hold, and not really great to wrangle in a position by your lonesome, but not impossible either.

As for video: It's more than fine. Maybe the pixels are bigger than my macbook's screen, but at 6+ft viewing distance with my eyesight, I can't tell.