You can in Europe, e.g: https://wise.com/help/articles/1CoZht05rHDEJcycXU2RMh/what-a...

Not quite.

"If you'd like to block a merchant and their recurring payments — please go directly to the merchant and ask them to stop recurring charges to your Wise card.

If you can't reach the merchant, or they haven't cancelled your subscription after you've asked, you can block future recurring charges to your Wise card through your Wise account."

I don't think that's standardized, it probably only has some heuristic to detect a subscription's associated payments and rejects them. It will not integrate in any way with merchants to cancel the subscription on their side, and in fact they suggest to first trying to cancel the subscription on the merchant side.