If you want to view the messages without showing the last seen😁, Unseen is the right choice🤗. Read the chats for messenger in Incognito😅. You can make your friends believe that you are offline ssh🤫 unless & untill you reveal them😂. If you use read receipts they might know you have enabled read receipt😟. That's why you can try unseen for messenger.

Don't worry for peeping the messenger that they might check blue tick just go with unseen😎. Insta message will be updated in the future😇