Question about AOC U2777pqu

We use this monitor with the Google Chromecast. Works fine, picture is good, volume control also works, connected via HDMI. Restriction: Only one input signal possible, i.e. to switch (e.g. to computer, if desired), it must be reconnected.

I see no reason why this should not work. The limitations are perhaps the following: Controlling the volume of the monitor's built-in speakers via the Apple TV's remote control will almost certainly not work. Furthermore, computer displays are designed for lower brightness than "real" TV sets. During the day in bright rooms, the contrast will be less good than with a "real" TV.