does turbo tax account for W2 SS and self employment tax and account for the max and return if you have too much SS withheld?

It depends on whether the excess social security were caused by a single employer or multiple employers. When you have excess social security tax withheld from one employer, you will get credit for it when you prepare your tax return in. TurboTax will calculate the credit and you can see it on your Schedule 3, line 11. 

Refer to the TurboTax article Can I get a refund for excess Social Security tax withheld? for more information.

Yes.  When it fills  out schedule SE for the self employment tax it takes in account the SS you paid on your W2 box 4.

Turbo Tax figures it out for you. If you also have W2 income, you have to break out the Social Security and Medicare taxes. Only the Social Security part maxes out.

The SE tax includes what you already paid in from your W2 so your schedule SE tax will only be the difference up to the max amount of $10,453.20 for social security. The max for social security for 2024 is 6.2% of wages plus schedule C net profit up to $168,600. Medicare is 2.9% (both er & ee parts) of all wages & schedule C profit - no max.

In the Online version you have to download the whole pdf to your computer to see it. If you have the desktop program you can switch to forms mode, click Forms in the upper right (left for Mac) and open the schedule SE.