For years using multiple google home speakers, I've always wanted an ability to lock/sync all speakers in a group to the same volume level, and move together accordingly. When using volume controls (which were made worse and less convenient in Android 12), the speakers often end up in drastically different volume levels. I can count on one hand the number of times I want each speaker in a group to be a different volume level. Instead, I consistently want each speaker to be the exact same volume level, and move up or down in volume together, but often have to do this manually. If a "volume sync" option were added to speaker groups, it would be hugely appreciated.
