WFH with a Nanny - is it disruptive?

In short, I’ve been very sick for the past 6 months straight and I don’t think I can do daycare again for our second child, mental health wise or physical health wise. We are in a financial position to afford a nanny, so that is not the concern.

My husband’s biggest concern about a nanny is that he feels uncomfortable having someone in the house at all times, especially since he works from home - he believes it will mess with his focus at work.

Can anyone please share your experience with WFH while also having a nanny? Is it really quite disruptive? Trying to convince my husband and could use all the anecdotes I can get.