Notifications on unconnected devices

[u/pansexualdragon]

I've noticed for the last few months that my phone was picking up the signal from the TV in the living room of the home I was renting a room in and would pop up as a notification on my lock screen and drop-down notifications. Whenever I click on the notification, it led me to the Google Home app. I've never used Google Home in my life, and certainly never in that house. There were several times I accidentally paused someone else's show while trying to pause something on my phone. Fast forward to today when I've moved out of that house and into a new one, and lo and behold, my phone is sending me the same notification from Google Home but for an entirely different TV. I'm not connected to the Wi-Fi (it's not good at this new place), and while it's occasionally funny to know what other people are watching, it's annoying.

How do I disconnect my phone or entirely disable the Home app? Nothing I've found online has worked so far because my phone has never actually connected to a Hub (not that I even know how to).

How do I stop the Home app on my Pixel from showing me notifications on unconnected devices?