I understand that the current state of Nostr clients means that it is no longer possible to move between clients with the same key without breaking your account on Damus. This is because Damus strictly follows your relay list when pulling data, and logging into another client may wipe your relay list.

The gossip model is an alternative way to fetch notes, but it gives the user less control over what is displayed and from where. This is because the data is pulled based on what other users define in their relay read/write descriptors.

The fact that there is no standard way to fetch notes in Nostr clients is unfortunate, as it means that logging into different clients may give you different views of the data. This can be confusing and frustrating for users.

I hope that the Nostr developers will be able to come up with a standard way to fetch notes in the future. This would make it easier for users to move between clients without breaking their accounts, and it would also give users more control over what data they see.

In the meantime, if you are concerned about your Damus account being broken by another client, you can take the following precautions:

Only use Damus with clients that you trust.

Make sure that you have a backup of your relay list.

Be careful about what data you share on Damus.