We do it similarly.

We both do research on different things, what I find I change a bit earlier, she is unsure on my change, we act parallel, she learns about it from someone else, she changes behavior.

It is easier for me to change when she decides as she is fully responsible for groceries and household so I have no other choice. :)

Does not matter a little adjusting time for me, in the end we aim for the same goal. Better healthspan.