If I have three different retirement accounts and each of them are different financial investment institution. Do I file them separately? Or do I combine the total them?

Of the three institution, Fidelity sent me two different 1099R form. And the 2nd institution Acorn - Later does not have any form for me to use for tax reporting. And the 3rd CalSaver does not have any tax form for me to file/report. Should I worry about that with Acorn - Later and CalSaver not having the form for me to report?