Do you think the United Kingdom still exists ?

After almost three decades, is there anything left of the pre outbreak British state ?

Could the British government have relocated to Belfast in Northern Ireland and be running a British rump state from there ? (Or would Northern Ireland have been annexed by the Republic of Ireland post-rage?). I imagine the British political and military leadership would have survived and relocated to bunkers or other safe areas. Surely the Scottish Highlands for example would be inhospitable terrain for the infected to cross on foot?

In my mind there’s still a British government in exile operating somewhere , even if they have no control over territory on mainland Britain. Perhaps they still run places like Orkney , Shetland, the Isle of Wight, etc? If we don’t take the comics as cannon I mean