I need to get a copy of the extension I filed through Turbotax for the 2023. I can't find a copy on my account. I did get an email confirming it was filed and accepted.

You have to sign onto the TurboTax account you used to e-file the extension request - 

https://myturbotax.intuit.com/

Start the 2023 online tax return by entering some personal information,

Click on Tax Tools on the left side of the online program screen.  Then click on Print Center.  Then click on Print, save or preview this year's return.  Choose the option Include government and TurboTax worksheets