What is proposed way of setting multiple form values at once?

[yss14]

I have a quite complex form with a lot of dynamic form data, which depends on each other.
So e.g. if the value of fieldA changes (which is controlled by a custom component), I have to re-calculate the value of an field array fieldB since they are depended on the selection of fieldA.
Right now, I do two setValue calls in the onChange callback of my custom component of fieldA, one for updating the form value of fieldA and one for updating the re-distribution of fieldB. Unfortunately, this causes stale validation issues. So I oftentimes end up in a state, where e.g. there are errors in formState, but isValid=true or the other way round, which seems to happen due to the two setValue calls. If I wrap the second setValue call within a setTimeout(() => setValue(...), 1) everything works fine.
Btw. calling trigger() after the two setValue calls doesn't fit the issue.

I found this issue from January this year which requests a feature to support setting multiple form values at once, which was closed as "completed", but I can't find any reference in either the docs or TypeScript types that this is supported right now by the library.
So what's the recommended way to update multiple values at once?