For 13 pro purchased in Dubai, can FaceTime work if the phone will be used in UK

If you can‘t make a FaceTime call on your iPhone, iPad, or iPod touch - https://support.apple.com/HT204168

July 2021 version "FaceTime isn't available or might not appear on devices purchased in Saudi Arabia, Pakistan, and United Arab Emirates, including Dubai. However, with iOS 11.3 or later, FaceTime is available on iPhone, iPad, and iPod touch in Saudi Arabia. And with iOS 12.4 or later, FaceTime is available on iPhone, iPad, and iPod touch in Pakistan. Update your device to get FaceTime in Saudi Arabia and Pakistan. "

It says it is disabled on items purchased in Dubai, it does not say that it will start working if taken to another country unlike phones purchased in some other previously restricted countries.

Yes, if you change the country in Settings to one other than the United Arab Emirates. Note that you'll likely be denied warranty service on it.

(206347)

Can I Ask You A Question !

Yes, but it is better to start a new topic with your question.