In 2021, I only contributed (didn't withdraw anything) to my employer 401k plan in all 3 ways: Pre tax, Roth & After tax. I received company match in Pre tax & Roth. I rolled over some amount from my After tax 401k to Roth IRA using mega backdoor (immediately after the first after tax 401k contribution, so there wasn't any earnings on those). I received form 1099-R.
How/where (which section) do I report this on Turbotax online? Is it required?