I'm in France. It's the same apocalypse as in the USA, but companies and recruiters are eager to get the biggest number of resume in their database. 50 is only a random number and it makes no difference in what you experience. Most companies post job offers, but never hire anyone, I've seen it because those offers are reposted as "brand new" every other week, which means that they found no one and they try again.

I use LinkedIn, Welcome to the Jungle, Hello Work, and every other site where I can apply. I think I sent at least 2 resumes every day for 6 months, i.e. 360 resumes, and most interviews are only meant for the recruiter to read my resume, me to explain it, and that's it. It seldom ends with a real interview in the final company. I forgot to mention that the recruiters are mostly working for "contracting companies" which is where you apply when you are desperate.

To sum it up, 50 or 10 interviews is the same thing, there is no job nowadays, it's all lies. The serious jobs I found where from small unknown companies that do not advertise at all...