Could be a poor implementation of Chromecast standard when integrated into the TV's. My Chromecast connected to my TV is also powered by a USB port on the TV.

Could be a poor implementation of Chromecast standard when integrated into the TV's. My Chromecast connected to my TV is also powered by a USB port on the TV. It seems to turn off when the TV is in standby, I have to wait for it to initialize when I turn my TV on. This detail could have been easily lost over the years. I do agree with people who say the Chromecast was best when it first came out. It did one thing well (albeit in an indirect way). Like all hardware, it has been slowly adding more and more features that will require it to draw more power, connect to the internet more, track more usage, integrate with more Google services, etc.