I have filed for Federal Personal Extension through Turbotax and it has been approved. Why am I still getting reminders for Apr 15th from TurboTax?

If you still owe taxes, they are due by April 15th.

Is there any other information on the Email?

No, there is no other information in the email.

Follow up questions:

1. How will I know if I owe taxes unless I do the filing/calculation?

2. Is the tax extension for those who get refunds only?

1. How will I know if I owe taxes unless I do the filing/calculation?

you're supposed to estimate your tax liability because that and payments made are supposed to be reflected. if you owe, it needs to be paid by 4/15/2025. if you don't owe there's nothing to pay

2 Is the tax extension for those who get refunds only? see 1