Stolen Iphone XR

“Removed from [my] account”? So the thief had access to your Apple ID? Interesting.

You’re out of luck. Although it sounds like perhaps you know the thief.

Anyway, here are all the details.

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

If it truly was removed from your account there is no way. Read the linked documents for more details.

Click on this link for general information about what to do "If your iPhone, iPad, or iPod touch is lost or stolen" --> https://support.apple.com/HT201472

- The Find My service is the only recovery feature Apple offers. It MUST be set up before the device is lost. If you did not do that it is too late to do it now and there is no other feature Apple offers that can help you find it.

Click on this link to read how to "Use the Find My app to locate a missing device or item" --> https://support.apple.com/HT210515

The chances of locating a device depend upon which features you selected in:

Set up Find My on your iPhone, Mac, and other devices - https://support.apple.com/HT210400#enablefindmy

Learn what you can do 'If Find My iPhone or Find My iPad isn't enabled on your missing device' by clicking here --> https://support.apple.com/HT211207

Hopefully the authorities can help you out.

Good luck!