You can also use ddg.gg which is even shorter!
And you don't even need to go the ~~website~~ homepage, just type something like ddg.gg/search promt
and it'll give you results straight away.
This is great even if you use a different search engine because you can use !bangs without needing to go through another webpage.
From what I understand, if we defederate from them, they can't see our posts either. See what happened when Beehaw defederated from lemmy.world and sh.itjust.works .
They could still be see the content by creating another instance, or by getting it from lemmy.ca directly. I doubt they'll do that though, especially with Lemmy. Lemmy communities look weird when seen from mastodon, and I doubt they'd look much better from threads.net.
Also I hate how they called it Threads. That's already a word used for other things in this space. Theres a thing called the threadiverse, and it doesn't include Facebook/meta/instagram threads?