A universal or brand-agnostic helmet is designed to work reasonably well with most goggle brands and sizes, so you're not locked into buying goggles from the same manufacturer. This is great if you already own goggles you love, or if you prefer mixing and matching brands for style, price, or lens options.
The trade-off is that you may not get the perfectly seamless integration you'd find with a matched brand system (like a Smith helmet with Smith goggles). There might be a small gap between the helmet brim and goggle frame, or the vent alignment might not be perfectly synced to prevent fogging.
That said, most universal helmets still work just fine with most goggles—just be sure to try them on together before you buy. Check for any exposed forehead skin (the dreaded "gaper gap") and make sure the strap sits securely without slipping off.