You have written a deterministic function. If you test this function with all 4 billion uint32 on one odd interval, go and count the number of times you get each result. Now look at your results, are all of the numbers equally likely or is there bias towards some outputs?

Ps: it looks like your function is exclusive like [0,N) not [0,N] Also your function is described in this blog post https://www.pcg-random.org/posts/bounded-rands.html