Unless you manage to roll most of your IRAs to Roth which is not subj to RMD because you already paid taxes at conversion.
I believe that is the basis your Fidelity Advisor used for his suggestion.
https://www.irs.gov/retirement-plans/retirement-plan-and-ira-required-minimum-distributions-faqs
Beginning in 2023, the SECURE 2.0 Act raised the age that you must begin taking RMDs to age 73. If you reach age 72 in 2023, the required beginning date for your first RMD is April 1, 2025, for 2024. Notice 2023-23PDF permits financial institutions to notify IRA owners no later than April 28, 2023, that no RMD is required for 2023.
The prevailing thought or preaching (broken records) here is ALWAYS deferred taxes to future - that is rather ignorant approach - if your IRA holds some big appreciation assets you actually might be better off to do backdoor Roth early on when you still have regular income to prevent paying taxes in the highest bracket when RMD hits. True, you will pay more taxes at conversion, but the effective tax rate might not be as high as when your IRA grows to multi-millions due to your great investment, then you could be hit much harder when RMD kicks in.
