Maybe Duck-Duck-Go need to have a !bang search modifier for Lemmy. https://duckduckgo.com/bangs
Most likely not feasible, because what the bangs do is passing site:domain.com
to the search result. As you know, Lemmy does not have a singular domain name so this won’t work for it. As a matter of fact, there is a bang for Mastodon, but it only searches the biggest instance, mastodon.social.
It doesn’t matter if you think a thing holds no value or not. You might be doing something that is currently legal and socially accepted, that on a whim could turn into the worst crime ever. Why would you give Facebook or whoever information that you did it? Why do they need to know? E2EE is obviously something that is doing its job in keeping people free from surveillance or otherwise governments wouldn’t try to ban it.
TL;DR: You are better off keeping as much as possible to yourself in general.
Edit: typos