Do "stealth startups" make sense?

I’ve seen this come about recently & I still never really understood the idea of a “stealth startup.”

How do you make noise?

You need users, you need traction, you need feedback: how do you get that without showing people what you’re working on? I get that secrecy has its perks, but how do you market a ghost. Personally, I lean more toward building in public, even if it’s messy: at least people see the journey and can hop on.

Curious though. anyone here actually pulled off stealth successfully?

I could literally just be uninformed, is there a long-term play I’m missing?