How many magazines can you borrow on Libby?

I'm curious, how many magazines can one actually borrow on Libby? I've heard it's a great platform for accessing digital books and magazines, but I'm not sure about the specific limitations when it comes to borrowing materials. Is there a set number of magazines that can be borrowed at once, or does it vary based on certain factors? I'd love to know more about the borrowing process and any potential restrictions that might apply.