[IceTDrinker]

The idea today is that you rely on sharing a key with the server (through a secure protocol) but the server still has to decrypt your data to do anything with it and then encrypt it back and send the result to you.

With FHE, if the server runs FHE software then you can encrypt your data with your secret key without ever disclosing it to the server (as it does not need it to compute stuff on your data).

The benefits are many: the server never has to know anything about your data (imagine a MedTech company doing diagnosis, your medical data will be safe from their prying eyes).

If the server is compromised, the attacker cannot look at your data, potentially no more private information leak!

On the regulatory side you potentially don't have to worry about GDPR anymore, you can't access the data of your users.

[jcbsd]

Also, you don't have to care where the data is being stored, because if it's fully end-to-end encrypted, location is far less of an issue (to your GDPR point). Alleviates a lot of the talk around the security risks posed by the unrestricted sale and transfer of sensitive data to foreign adversaries (China, Russia) that dominates the political landscape in the U.S.