The only thing that the SECURE 2.0 Act did with regard to Roth contributions was require that catchup contributions to employer plans for highly compensated employees be Roth contributions. As Opus 17 said, this has nothing to do with Roth IRAs or your AGI. The employer is responsible for enforcing this requirement based on your earnings at that employer by depositing catchup contributions of highly compensated employees into the designated Roth account in the plan (again, not a Roth IRA).
Any contributions to the designated Roth account in your employer plan will be reported as such in box 12 of your W-2 and will not be excluded from the wages reported in box 1.
