Warranty card wallet question

[HiThere]

Hello. I have a GMT II and a Sub that are both 2021 models. I bought them both grey, from two different jewelers - both very reputable, trusted sellers. Today I noticed that the Rolex green wallet that holds the warranty card is slightly different between the two models. I have a pic but can’t figure out how to post it here. Says my image needs to be resized. The card holder for the BLNR has a slot with a little window that exposed the date, and the card holder for the sub has the opening for each side of the card. Is this any reason to be concerned, or does Rolex have different designs of the wallet in the same year for two different models? Thanks for any insight.