Yes - notes, tasks, reminders and shopping lists are added from an iPhone and appear on the Apple TV board, colour-coded and multi-member. See the help page for syncing.
It is a shared bulletin board rather than a calendar - quick notes, task lists and reminders that everyone in the room can see at a glance.
Apple TV.
You’re browsing inside Instagram, and its built-in browser isn’t allowed to hand links over to the App Store. Open this page in Safari and the link will work.
Tap the three-dot menu at the top right, then choose Open in external browser.