No, other users cannot see your subscription status or whether you are a Premium or Platinum subscriber. Your plan is private and not visible to other daters.
The only indirect hint is if you send a flower 🌸, but this isn't a definitive indicator since flowers can also be sent using beans, so the receiver cannot confirm whether you have a Premium plan.
For Platinum subscribers, the priority-like stamp you see when sending a like is visible only to you. The person receiving your like cannot see the stamp and cannot tell that you are a Platinum subscriber.