but they cost $1030 (US), which is over twice as much as their consumer TV with the same specs.
Subsidized by ads, makes it cheaper. Personally I am willing to pay it (to some degree)
I couldn’t actually find any large dumb monitor except for the ultra-wide curved ones, but I only looked around for half a hour or so.
Chromecasts are not able to cope with anything other than 16:9. :(
(A more straightforward way to get a privacy respecting setup like this would be to install LibreELEC on something like a Pi or a Mini-PC and get the same kind of wireless remote as I have - my setup is only as it is because I didn’t know about LibreELEC back when I put it together plus it also works as a home server as well as my home NAS, since an N100 Mini-PC is very overpowered to just work as a Media Player).
What does it matter if TVs like LG do ACR on HDMI content?
For actual privacy it requires at the very least a display with nothing other than hardware to decode a video signal.