Moving forward for users to get connected, they must follow their organizations internal guidelines and be invited by their My Esri administrator.
Requesting additional Permissions once connected will still be available in My Esri as in this scenario a user has been validated through internal process.
The My Esri User interface will be updated to communicate this to customers. To ensure a smooth transition, we are leaving the ability for administrators to complete any open requests that have come in after May 11, 2023 until we have deprecated classic My Esri.