In short, Brexit is NOT done, it can't be 'done' as we still have no idea what it will be, in the end.
''Brexit is never-ending
What Brexit really means for the UK is a series of interminable disputes on practically all fronts with its largest trading partner, which has an economy nearly six times larger. Whatever the Brexiteers want to claim about being “sovereign equals”, the EU is a supra-national body with much greater power and weight in the world economy and the UK stands to lose far more in any disagreement, both materially and in terms of its global reputation.
Britain, alone, risks becoming an irrelevance on the world stage.
Brexit has compounded the economic impact of the pandemic at home and, as has been made clear by the new German coalition and is an unwelcome distraction for EU leaders from major global challenges, such as the threat of dangerous climate change and escalating tensions with both China and Russia.
The Brexiteers’ fantasies about “global Britain” are finally coming home to roost. Under this administration, Britain will never be global and Brexit will never be done. We are condemned to never-ending acrimonious negotiations with those who should be our closest friends and allies.''