For news and search I have no idea. But I've been moving email, calander, drive, and password manager over to Proton. Im just starting with it but you definitely give up some convenience for the peace of mind.
Yeah, I'm in a similar boat with some of the communities I'm trying to start. But I did it before with a subreddit and it was similar. It was a very very long time of only me posting before other people joined in. But with Lemmy it seems to be going a bit faster at least. I'm sure slowly over time more and more people will join and find their niches. Good luck!
For news and search I have no idea. But I've been moving email, calander, drive, and password manager over to Proton. Im just starting with it but you definitely give up some convenience for the peace of mind.