It can be far fewer if you have a focus/specialty and specific industries that you target.
No doubt though, it's a slog right now. My recent process was around 10 applications - which became 3 interviews - and the last 2 were offers, one that came via a recruiter. Even this is a marked increase in difficulty vs 4 years ago.
That said, especially in a tough labor market, finding a job is like dating, and the vibes matter a lot. While you control your side of the vibe, you don't control the other side. Technical people especially often don't want to think about the interpersonal factors, but they are a real part of the process.
