Add an Option to Disable Activity Pop-up Notifications
The large activity notification that appears whenever someone joins an activity is quite disruptive. It constantly interrupts gameplay and often covers the area a person is currently focused on. Sometimes another notification appears before I've even had a chance to make my next move, and that is overwhelming.

It would be great to have an option in Settings to disable these notifications or reduce them to a smaller, less intrusive version. Players who find them useful can leave them enabled, while those of us who prefer an uninterrupted experience can turn them off.