In the Safari app , you can share a Tab Group and collaborate with people who use iCloud. You can add and remove people from the Tab Group at any time, and even start a message conversation, phone call, or FaceTime call without leaving Safari. Collaborators can add and remove tabs from the Tab Group, and everyone sees updates in real time.
How to Set up a custom Focus
Tap the Tabs button to view the open tabs in that Tab Group
Tap the Share button at the top-right corner of the Tab Group
Tap Messages, then choose the person or group you want to share it with
You get activity updates in the Messages conversation when someone makes changes in the shared Tab Group - tap the updates to go to the shared Tab Group
Everyone you collaborate with must be signed in with their Apple ID, have Safari turned on in iCloud settings, and have two-factor authentication turned on.