From ArsTechnica:
According to DuckDuckGo, chats on the service are anonymized, with metadata and IP address removed to prevent tracing back to individuals. The company states that chats are not used for AI model training, citing its privacy policy and terms of use.
“We have agreements in place with all model providers to ensure that any saved chats are completely deleted by the providers within 30 days,” says DuckDuckGo, “and that none of the chats made on our platform can be used to train or improve the models.”
So there is some trust involved, but I'm inclined to believe DDG.
Back up an image the entire operating system HD when it's working well. If you ever get overwhelmed with bugs you can always go back to a functioning state.
We all like checking out the latest features and updates but it's important to remember that it's not a race.