New iPhone has notes showing up that aren't mine?

My work gave me an iPhone to use. When I first started it up, there were two notes in there that weren't mine, so I deleted them. A few days later, two more notes (one from three days ago, one from two days ago) recently appeared as if I were the one to create them. Does anyone know how this happened? Is someone else linked to this phone?

Get an android phone

Clear it

Did you check to see which Apple ID was signed into it? That is likely why.

Assuming the phone was not new & had been previously used & signed in with someone else's Apple ID which was not removed before giving it to you, hence why those Notes would pop up.