I've barely used the calendar or My Day feature of my two Google Homes since getting them because of the lack of one major feature: multiple calendar support. See, I almost never add any event to my personal calendar since both my husband and I use a shared calendar so we always know what our responsibilities are, whether they're shared or individual. But now Google Home is finally adding multiple calendar support.
You can find the option if you open the Google Home app, go to More Settings in the left side menu, and scroll down to the Calendar section. (You can also get to it by going to Assistant, then blue box, then Settings.Read More