I went through a divorce in Canada, there is a thing called "amiable divorce/separation". Where both parties negotiate a fair divorce agreement rather than the standard "Pay continued support for X months/years + lump sum".

So there is some variability, and of course in my case it was a "happy path" scenario where both me and my ex-wife mutually wanted the divorce.

But by default you have to pay spousal support regardless of how well-off your partner is. The assumption is that women will be worse off after a divorce financially. Which is really not a contemporary point of view to make as a blanket statement.