You see it's statements like this "The UK FSD is non-existent" which confuse me. Only a few weeks ago I drove from the South of England to Silverstone (Midlands), around 100 miles mostly on autopilot with my Model Y's version of autopilot engaged. Which from what I can tell appears to be a mixture of FSD (Full Self-Driving Capability) EAP (Enhanced Autopilot) and BA (Basic Autopilot).The USA has all the functionality of FSD beta, with training data from US road driving. The UK FSD is non-existent, except summon, when it decides to work.
However, I understand there's been no training or atleast no update using training from driving on UK (and European) roads. I've read there is potential for a larger global release this year.