I think it depends on the program, but that's not a standard metric. Because we keep talking about these being competitive awards, there is systemic bias in here. Reviewers are chosen from the pool of people who've had funds before. If you've had funds before, you get called as a reviewer. All of our institutions have examples where they've seen systemic bias against researchers from small universities with comments like, “I don't know how this person would do this, at this institution that doesn't have the infrastructure set up for that.” A minor comment like that moves your proposal elsewhere.
On your question about collaboration, some of the programs do have that embedded, but it's not a common one for merit-based awards.