I was recently disciplined by the moderators for responding to a 3-month old thread, so I will not make the same error again....
I have an LG CX OLED TV. It has a Roku, which is the default video device, it also has a FireStick plugged in for the slightly better web-browser it offers, and it will soon also have a Chromecast plugged in, as this seems the only way to get a zoom session screen-shared from a Pixel phone to the big screen of the TV, as Google refuses to support Miracast on their stock ROMs.
I saw, installed and configured the Hubitat LG TV driver, and I see various integrations between Google Home and Hubitat mentioned. But can the below happen?
a) Doorbell is rung - this triggers a SAGE doorbell sensor, so Hubitat can respond to this event.
b) There is a Wyze cam that has a view of the porch.
c) Wyze cam is "integrated" with Google home.
d) There are several different Chromecast drivers, but I do not see any functionality that would allow the Chromecast to "play" the video stream from the camera when the doorbell is rung on the TV.
e) While is is said to be supported, when using remote controls, I don't see any specific ability to play a video stream to the Chromecast, and via CEC, turn on the TV and switch to the correct HDMI port if the TV is off when the doorbell is rung.
Maybe this is all too aggressive, and the simpler answer is to put the video stream on the phone, and leave the TV be.
But sooo many toys, and so much incompatibility.... maybe I am missing some obscure feature that makes this sort of thing easier to implement.