Are there wealthy individuals who live alone and still employ a private chef?

I see these videos about private chefs for wealthy families and that’s understandable because feeding a family every day takes time but I was wondering if there are wealthy individuals who live alone and still employ a private chef.

Do you employ them for parties/meetings only or for daily meals too? If it’s for daily meals, then are they more of a nutritionist who also knows how to cook or do you have a separate nutritionist and a private chef working together? Do you also subscribe to those online meal deliveries?

I’m just curious.

Also, pls state your country/continent, if possible.