[crazygringo]

> I do not understand how a voice assistant help with this, it has never worked for me.

What do you mean it has never worked? What do you ask your assistant, and what does it respond?

> Seems like pretty hard things to do on the fly with recipes.

What's hard? I don't understand. If you need a quantity in unit x, but you only have a measuring cup or spoon in unit y, then you ask for the conversion and then you measure out that amount in unit y.

I genuinely don't understand the difficulties you seem to be encountering.

> do you really do you guys really do it that often?

Yes, literally all the time.