Eric Unfortunately, even though WearOS 3 supports Google Pay, the feature "Pay with Wear OS" has different regional restrictions than Google Pay on Android smartphones, with The Netherlands not being supported.
Which means that for example German bunq users can use their bunq cards on the Samsung Galaxy Watch 4, but Dutch bunq users cannot do that... it's indeed a bit more confusing situation than with Apple Pay, where a region is (mostly) either fully supported or not at all.