After Intuit confirmed that IRS approved my return, TurboTax sent an email about uploading W-2. I'm retired. No W-2!

You don't need to do anything if you had no W-2 form issued to you for the year.

Disregard that generic marketing email.    But....Intuit did not tell you that the IRS "approved" of your refund.  TT told you if your return was "accepted."  Accepted and approved are not the same thing.

Accepted” is not the same as “approved”.  TurboTax tells you the e-file was accepted if the IRS deems that there is enough information on the return for them to take it in for processing.   Only the IRS can approve of the refund, which is a later stage of processing.  If the IRS approves your refund they will provide a date for the refund to be issued.

Once your federal return has been accepted by the IRS, only the IRS has any control.  TurboTax does not receive any updates from the IRS. Your ONLY source of information about your refund now is 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

To track your state refund:    

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-refund/track-state-refund/L3jgO8PGs_US_en_US?uid=lt447ebr