Loving our new Roku TV. Everything integrates with the Roku integration.
Certainly HDMI switcher, apps, and automations.
Not sure about notifications to the TV. I have not looked into it yet. But, will sometime.
As far as camera stream, there is a five dollar app that will allow streams. But, not PIP.
And, a great authentic looking remote.
Authentic-looking Roku remote - Share your Projects! - Home Assistant Community (home-assistant.io)
We got the Roku - 75" Class Plus Series QLED 4K Smart RokuTV from Best Buy in October for $899.
I do also recommend the wireless sound bar and wireless base pro ($150 and $180). So, $1,230 total.
Roku TV Wireless Soundbar – Soundbar for Roku TV | Roku
Roku Wireless Bass Pro – Wireless Subwoofer for TV | Roku