There is a rule about required withdrawals that everybody half remembers, and the half they remember is the wrong half.
The rule is that you can add up your required amounts and take the total from one account.
That is true. For IRAs.
It is emphatically not true for 401(k) plans, and people with two or three old workplace accounts discover this the hard way, usually in a letter, usually after a penalty has already accrued.
Here is how the aggregation rules actually work, and why one extra rollover years ago would have solved the entire problem.