When you give an app calendar permissions it can tap into Android’s Calendar Provider API to access schedule data that’s synced with your device. That could come from anything like Samsung ...

The new toggle essentially lets you control whether Google Calendar shares your event data with other apps on your device (the ones tapping into the Calendar Provider API).

For the past several years, Google Tasks has been restricted to a side panel in Gmail, Drive, and other Workspace sites. Google Calendar on the web is now adding a fullscreen Tasks interface.