What companies actually require people to have a GitHub and LinkedIn to apply? I've been doing recruiting for about a year and a half, and I've never seen this

What companies actually require people to have a GitHub and LinkedIn to apply? I've been doing recruiting for about a year and a half, and I've never seen this be a hard and fast prerequisite. I guess I could see a situation where the HR machine makes you fill out some stupid form when you apply to a company (in the same way that this HR machine makes you upload your resume in a certain format), but I'd be very surprised if those rules and requirements come from hiring managers. It makes sense to want 1) a concise way to see where you've been working, what you've been doing, and what you write like (presumably this is the LinkedIn portion) and 2) code samples, but it doesn't make sense to require that this info comes to you in a specific medium.