Evaluation Criteria

Hello Everyone. Might be a silly question but wanted to check this scenario. In the below, the referrer says Contains https://www.example.com?

So is the smart campaign going to match for any single character after https://www.example.com or is it going to match any string that contains https://www.example.com?

Or in other words would question mark(?) be treated as a wild-card character or is it just a normal character. Please advise, thank you!