Qualified 401(k) Distributions

I am retired, over 59.5, and looking at taking distributions from my 401(k) pretax fund to purchase a Flexible Annuity and a separate distribution from my after-tax Roth 401(k) (to cover tax withholding).  Does the IRS limit the amounts of these two distributions from a qualified 401(k) employer plan?  Do the taxes have to be paid in the year of the distribution(s) or can the tax burden be spread out over a period of years?  Is Turbotax Premier capable of processing this for my 2022 taxes?