I checked the IRS2GO app and it said my return was being processed. It’s been over21 days what does this mean?

I understand how frustrating it could be waiting over 21 days for your refund. Please see our Turbo Tax FAQ, which describes reasons for delays. Hope this helps https://ttlc.intuit.com/replies/3288568

Please also see https://ttlc.intuit.com/replies/3302084

I was checking to see when my federal return will be in the bank it's just showing processing I already got my state

TurboTax does not get any information about refund status. You must check the status yourself using the IRS refund tracking web site: https://www.irs.gov/refunds