"I find the Turbo Tax 2025 Home and Business Desk is not considering the 401k Roth conversions when calculating MAGI for the Roth IRA contribution limit."
TurboTax is behaving correctly. In-plan Roth Rollovers are not to be subtracted from AGI. Only conversions to a Roth IRA are to be subtracted. IRRs have never been permitted to be subtracted from AGI.