Google is apparently testing some tweaks to shared active Google Cast notifications
For a long time now, people on your local WiFi network have been able to mess with your Chromecast session, and it’s all thanks a shared Cast notification feature that started showing up for users last year. This has resulted in plenty of hijinks where users have had their cast sessions annoyingly messed with in certain situations, like when inviting guests over for parties.
Now, it seems Google is aware of this annoyance and is taking some baby steps to help…