Please review the link provided below to assist with entry of your Foreign pension income:
Do we have to use the Online Premier edition even if the foreign pension income is the only item we'd need to file?
Yes. Foreign income is only available in TurboTax Premier Online (or higher) in 2021.
Please see these TurboTax FAQs for more information:
Why did I have to upgrade my TurboTax Online edition?
Who can file for free using TurboTax?