In Canada, the monarchy is mostly symbolic. There is a delegate of the monarchy called the governor general who speaks on behalf of the current monarch (plus leutenant governers at the provincial level). Their primary function is to veto bills they believe are unconstitutional or otherwise not in the interest of the public, plus a number of ceremonial things.
The monarch themself may be biased toward the attitudes and views of the UK, but there is no mechanism for British parliament to have any (legal) sway in Canadian politics (or in any of the other 12 countries in the commonwealth).
So the monarch has authority in all 14 countries, but nobody else can do anything in any other country.
In Canada, the monarchy is mostly symbolic. There is a delegate of the monarchy called the governor general who speaks on behalf of the current monarch (plus leutenant governers at the provincial level). Their primary function is to veto bills they believe are unconstitutional or otherwise not in the interest of the public, plus a number of ceremonial things.
The monarch themself may be biased toward the attitudes and views of the UK, but there is no mechanism for British parliament to have any (legal) sway in Canadian politics (or in any of the other 12 countries in the commonwealth).
So the monarch has authority in all 14 countries, but nobody else can do anything in any other country.