Roth 401-K RMD for 2022 ?

[RWG1950]

I file a schedule "C" and have a Vanguard solo 401K plan (no employees) and will turn 72 in 2020.
All employee deferral contributions over the years were made into the Roth 401-K portion. No employer pre-tax contributions were ever made.
It is my understanding that, as more than a 5% owner, I will need to take an RMD from the plan beginning this year.
Do I have this correct ? Thanks for comments.

[RWG1950]

I meant to say I turn 72 in 2022.

[jmcdtax]

See Taxbook 13-22. RMD rules do not apply to Roth IRAs but they do to Roth 401K plans. Could you rollover the 401K to a Roth IRA and avoid RMDs?