Just remember to never remove the stolen iPhone from Find My, the thieves will try everything to convince you to do so.
Like when they're taking it from you, or do they contact you later somehow?
If it's when they are taking it, why do they try to convince you instead of forcing you since they are already using force to take it?
If it's the latter, how do they contact you if you don't have a phone?
See this article on what that can look like:
https://www.phonearena.com/news/stolen-iphone-scams-how-to-p...