This certainly should be working, especially with the resources you described. Although the RSSI is reading some interference, your google mesh network sounds to be providing plenty of bandwidth and is not being blocked by major interferences. Try removing and reinstalling the Ring app, just to ensure it is up to date and optimally integrated with your mobile device. I recommend also ensuring this Video Doorbell is connected to 2.4 Ghz, rather than the 5 Ghz frequency.
Another step worth trying is charging the battery and testing operation while in the home, with a newly charged battery. If the Video Doorbell is still not functioning, please perform a reset by holding the setup button for 20 seconds. If this concern persist, it may require a more in-depth look from our support team. Please read our response to COVID-19 here to see how to contact support. We’re taking additional steps to protect our team and help reduce the spread of COVID-19. This has resulted in longer than normal wait times.