Should I be concerned with the fact that I have not received my taxes yet?

You do not mention how long ago you sent the information the IRS requested.  TurboTax does not get any information from the IRS after you file your return.  Only the IRS is in control.  You can continue to watch the IRS refund site for information or call the IRS to see if they will give you an estimate of how much longer it will be.

Federal and state refunds come from completely separate entities.  There is no rule as to which one will come in first or how long it will be between their arrival in your account.

TurboTax gives you an estimated date for receiving your refund based on a 21 day average from your date of acceptance, but it can take longer.  “21 days”  is not a promise from TurboTax or the IRS. 

You need your filing status, your Social Security number and the exact amount  (line 35a of your 2024 Form 1040) of your federal refund to track your Federal refund:   

https://www.irs.gov/refunds

Call the IRS: 1-800-829-1040 hours 7 AM - 7 PM local time Monday-Friday

When calling the IRS do NOT choose the first option re: "Refund", or it will send you to an automated phone line.
So after first choosing your language, then do NOT choose Option 1 (refund info). Choose option 2 for "personal income tax" instead.
Then press 1 for "form, tax history, or payment".
Then press 3 "for all other questions."
Then press 2 "for all other questions."
- When it asks you to enter your SSN or EIN to access your account information, don't enter anything.
- After it asks twice, you will get another menu.

Press 2 for personal or individual tax questions.
Then press 3 for all other inquiries
It should then transfer you to an agent.