Didn't Think Much of These - Screws Under Vinyl Insert Trim

Are you speaking of the 1inch wide strip that squeezes into the metal near the joints?

If yes, you can check by simply running your finger down it. You can feel the screws underneath (or not). If it's relatively new, not a big deal to pull it out and then put it back in. Did that on our latest when I found a couple screws that weren't all the way in.