Multi-Tenant Notifications & EU WebSocket URL Questions

Can I fetch all notifications for a user who belongs to multiple tenants? For example, if John is part of Org A and Org B, can I filter notifications by organization (e.g., only for Org A) and also fetch all notifications from both?

What is the correct WebSocket URL for the EU region? I tried wss://ws.eu.novu.co but it doesn’t seem to work.

Thanks in advance!