FICA W2C 1040X Amend Needed?

My employer didn't withhold FICA (Social Security and Medicare) taxes for years 2021 and 2022. I only had one employer and one state residency (no state taxes in WA) those years. I paid the taxes and employer issued W2C for those years. The information also includes that I need to file 1040X with Copy B of W2C.

 

Questions:

- Do I need really need to amend the taxes for 2021 and 2022 years if TurboTax shows $0 in Federal Refund field in the Desktop software?

- Is there a penalty that I didn't pay FICA taxes in 2021 and 2022?

- What should be my next steps?

 

Thanks!